H. Chrystyn

发表

MACVIA clinical decision algorithm in adolescents and adults with allergic rhinitis.

Todor A Popov, I. Pavord, A. Sheikh, 2016, The Journal of allergy and clinical immunology.

What the pulmonary specialist should know about the new inhalation therapies

H. Chrystyn, I. Horváth, P. Diot, 2011, European Respiratory Journal.

Inhaler Errors in the CRITIKAL Study: Type, Frequency, and Association with Asthma Outcomes.

Lisa M. Law, D. Price, J. Haughney, 2017, The journal of allergy and clinical immunology. In practice.

Determination of factors controlling the particle size in nanoemulsions using Artificial Neural Networks.

H. Chrystyn, P. York, A. Amani, 2008, European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.

Effectiveness of Same Versus Mixed Asthma Inhaler Devices: A Retrospective Observational Study in Primary Care

David Price, Julie von Ziegenweidt, Alan Kaplan, 2012, Allergy, asthma & immunology research.

Achieving asthma control in practice: understanding the reasons for poor control.

D. Price, R. Horne, J. Haughney, 2008, Respiratory medicine.

The Jones Morbidity Index as an aid for community pharmacists to identify poor asthma control during the dispensing process

H. Chrystyn, T. Nishiyama, 2003 .

Inhalation characteristics of asthma patients, COPD patients and healthy volunteers with the Spiromax® and Turbuhaler® devices: a randomised, cross-over study

H. Chrystyn, D. Saralaya, Wahida Azouz, 2015, BMC Pulmonary Medicine.

Characteristics of patients making serious inhaler errors with a dry powder inhaler and association with asthma-related events in a primary care setting

D. Price, J. Haughney, D. Ryan, 2016, The Journal of asthma : official journal of the Association for the Care of Asthma.

Asthma control in patients receiving inhaled corticosteroid and long-acting beta2-agonist fixed combinations. A real-life study comparing dry powder inhalers and a pressurized metered dose inhaler extrafine formulation

H. Chrystyn, G. Nicolini, G. Gálffy, 2011, BMC pulmonary medicine.

Bioavailability of Beclometasone From Two HFA-BDP Formulations With a Spacer

H. Chrystyn, S. Aburuz, Amira S A Said, 2019, Respiratory Care.

Evaluation of inhaler technique and achievement and maintenance of mastery of budesonide/formoterol Spiromax® compared with budesonide/formoterol Turbuhaler® in adult patients with asthma: the Easy Low Instruction Over Time (ELIOT) study

D. Price, S. Bosnic-Anticevich, H. Chrystyn, 2018, BMC Pulmonary Medicine.

Optimizing the Inhalation Flow and Technique Through Metered Dose Inhalers of Asthmatic Adults and Children Attending a Community Pharmacy

Henry Chrystyn, H. Chrystyn, W. G. Ammari, 2013, The Journal of asthma : official journal of the Association for the Care of Asthma.

A multinational observational study identifying primary care patients at risk of overestimation of asthma control

D. Price, J. Haughney, D. Ryan, 2019, npj Primary Care Respiratory Medicine.

Back to Basics in Asthma and COPD: Optimising the Patient Journey

G. Canonica, M. Mäkelä, H. Chrystyn, 2018 .

New HPLC assay for urinary salbutamol concentrations in samples collected post-inhalation.

H. Chrystyn, S. H. Mazhar, 2009, Journal of pharmaceutical and biomedical analysis.

Not all asthma inhalers are the same: factors to consider when prescribing an inhaler.

David Price, Henry Chrystyn, D. Price, 2009, Primary care respiratory journal : journal of the General Practice Airways Group.

Gaining an insight into the importance of each inhalation manoeuvre parameter using altered patients’ inhalation profiles

H. Chrystyn, H. Larhrib, M. Abadelah, 2020 .

Real-life budesonide and formoterol dose emission from the medium and high strength fixed dosed combinations in a Spiromax® dry powder inhaler using inhalation profiles from patients with chronic obstructive pulmonary disease.

H. Chrystyn, M. Abadelah, G. Bagherisadeghi, 2019, European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.

Use of inspiratory profiles from patients with chronic obstructive pulmonary disease (COPD) to investigate drug delivery uniformity and aerodynamic dose emission of indacaterol from a capsule based dry powder inhaler.

H. Chrystyn, H. Larhrib, M. Abadelah, 2019, European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.

Inhaler technique mastery and maintenance in healthcare professionals trained on different devices

D. Price, C. Rand, S. Bosnic-Anticevich, 2018, The Journal of asthma : official journal of the Association for the Care of Asthma.

Comparison of serious inhaler technique errors made by device-naïve patients using three different dry powder inhalers: a randomised, crossover, open-label study

D. Price, J. Haughney, S. Bosnic-Anticevich, 2016, BMC Pulmonary Medicine.

Effectiveness of Inhaler Devices in Adult Asthma and COPD

J. Virchow, H. Chrystyn, N. Roche, 2013, EMJ Respiratory.

Aerodynamic dose emission characteristics of dry powder inhalers using an Andersen Cascade Impactor with a mixing inlet: the influence of flow and volume.

H. Chrystyn, S. Yakubu, K. Assi, 2013, International journal of pharmaceutics.

Training tools for inhalation devices: the need for more sophistication.

H. Chrystyn, Wahida Azouz, Jessica Campbell, 2011, Primary care respiratory journal : journal of the General Practice Airways Group.

Relative lung deposition of salbutamol following inhalation from a spacer and a Sidestream jet nebulizer following an acute exacerbation.

H. Chrystyn, N. Ismail, S. H. Mazhar, 2008, British journal of clinical pharmacology.

Salbutamol relative lung and systemic bioavailability of large and small spacers

H. Chrystyn, S. H. Mazhar, S. A. Mazhar, 2008, The Journal of pharmacy and pharmacology.

The dry powder inhaler features of the Easyhaler that benefit the management of patients

H. Chrystyn, F. Lavorini, 2020, Expert review of respiratory medicine.

Assessment of different methods of inhalation from salbutamol metered dose inhalers by urinary drug excretion and methacholine challenge.

H. Chrystyn, H. S. Tomlinson, S. Corlett, 2005, British journal of clinical pharmacology.

Device errors in asthma and COPD: systematic literature review and meta-analysis

H. Chrystyn, Mike Thomas, J. van der Palen, 2017, npj Primary Care Respiratory Medicine.

The Genuair® inhaler: a novel, multidose dry powder inhaler

H. Chrystyn, C. Niederlaender, 2012, International journal of clinical practice.

Determination of the relative bioavailability of salbutamol to the lung following inhalation.

H. Chrystyn, M. Hindle, Michael Hindle, 1992, British journal of clinical pharmacology.

Is total particle dose more important than particle distribution?

H. Chrystyn, 1997, Respiratory medicine.

Two hormone replacement therapy (HRT) regimens for middle-eastern postmenopausal women.

H. Chrystyn, A. Elfituri, Fathi M. Sherif, 2005, Maturitas.

The use of multiple respiratory inhalers requiring different inhalation techniques has an adverse effect on COPD outcomes

D. Price, D. Ryan, S. Bosnic-Anticevich, 2016, International journal of chronic obstructive pulmonary disease.

An Open-Label Investigation of the Pharmacokinetics and Tolerability of Oral Cysteamine in Adults with Cystic Fibrosis

H. Chrystyn, J. Norrie, S. Cotton, 2016, Clinical Drug Investigation.

Droplet aerodynamics, cellular uptake, and efficacy of a nebulizable corticosteroid nanosuspension are superior to a micronized dosage form

H. Chrystyn, S. Britland, Mohamed E A Abdelrahim, 2012, Biotechnology progress.

Do Inhalers and Their Correct Use Contribute to Good Patient Management ? Doctor

J. Haughney, S. Bosnic-Anticevich, H. Chrystyn, 2016 .

High performance liquid chromatography assay method for simultaneous quantitation of formoterol and budesonide in Symbicort Turbuhaler.

H. Chrystyn, K. Assi, W. Tarsin, 2006, Journal of pharmaceutical and biomedical analysis.

Survey of pharmacists’ attitudes towards interchangeable use of dry powder inhalers

H. Chrystyn, Angela E. Williams, 2007, Pharmacy World & Science.

Dry powder inhalers are bioequivalent to metered-dose inhalers. A study using a new urinary albuterol (salbutamol) assay technique.

H. Chrystyn, D. Newton, M. Hindle, 1995, Chest.

Effect of maximum inhalation flow and inhaled volume on formoterol drug deposition in‐vitro from an Easyhaler® dry powder inhaler

H. Chrystyn, H. Larhrib, H. Rahmoune, 2017, European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.

In vitro aerodynamic characteristics of aerosol delivered from different inhalation methods in mechanical ventilation

H. Chrystyn, Mohamed E A Abdelrahim, H. Rabea, 2017, Pharmaceutical development and technology.

Assessment of recent nebulizer delivery systems using urinary pharmacokinetics method and aerodynamic characteristics of TOBI® nebulized dose following inhalation

H. Chrystyn, B. Clark, K. Assi, 2017 .

The relative lung and systemic bioavailability of terbutaline following nebulisation in non-invasively ventilated patients.

H. Chrystyn, Mohamed E A Abdelrahim, P. Plant, 2011, International journal of pharmaceutics.

Relative bioavailability of terbutaline to the lung following inhalation, using urinary excretion.

H. Chrystyn, Mohamed E A Abdelrahim, K. Assi, 2011, British journal of clinical pharmacology.

In‐vitro characterisation of the nebulised dose during non‐invasive ventilation

H. Chrystyn, Mohamed E A Abdelrahim, P. Plant, 2010, The Journal of pharmacy and pharmacology.

Aerodynamic characteristics of nebulized terbutaline sulphate using the Next Generation Impactor (NGI) and CEN method.

H. Chrystyn, Mohamed E A Abdelrahim, 2009, Journal of aerosol medicine and pulmonary drug delivery.

Determination of the bioavailability of gentamicin to the lungs following inhalation from two jet nebulizers.

H. Chrystyn, B. Clark, A. I. Al-Amoud, 2005, British journal of clinical pharmacology.

An investigation of in vitro/in vivo correlations for salbutamol nebulized by eight systems.

H. Chrystyn, J. Dennis, C. Pieron, 2002, Journal of aerosol medicine : the official journal of the International Society for Aerosols in Medicine.

Standards for Bioequivalence of Inhaled Products

H. Chrystyn, Henry Chrystyn, 1994, Clinical pharmacokinetics.

Methods to determine lung distribution of inhaled drugs - could gamma scintigraphy be the gold standard?

H. Chrystyn, 2000, British journal of clinical pharmacology.

Dose response relation to oral theophylline in severe chronic obstructive airways disease.

H. Chrystyn, M. Peake, B. Mulley, 1988, BMJ.

Therapeutic drug and biochemical monitoring in a community pharmacy: Part 1

H. Chrystyn, G. Hawksworth, 1995 .

Response to oral theophylline in severe chronic obstructive airways disease: Authors' reply

H. Chrystyn, M. Peake, B. Mulley, 1989 .

Can all patients with COPD use the correct inhalation flow with all inhalers and does training help?

Henry Chrystyn, H. Chrystyn, Raid A M Al-Showair, 2007, Respiratory medicine.

Study of the Emitted Dose After Two Separate Inhalations at Different Inhalation Flow Rates and Volumes and an Assessment of Aerodynamic Characteristics of Indacaterol Onbrez Breezhaler®150 and 300 μg

H. Chrystyn, H. Larhrib, M. Abadelah, 2017, AAPS PharmSciTech.

Concept review of dry powder inhalers: correct interpretation of published data

H. Chrystyn, D. Price, 2015, Multidisciplinary Respiratory Medicine.

Spiromax, a New Dry Powder Inhaler: Dose Consistency under Simulated Real-World Conditions

G. Canonica, H. Chrystyn, J. Arp, 2015, Journal of aerosol medicine and pulmonary drug delivery.

Effect of inhalation profile and throat geometry on predicted lung deposition of budesonide and formoterol (BF) in COPD: An in-vitro comparison of Spiromax with Turbuhaler.

H. Chrystyn, G. Gopalan, G. Safioti, 2015, International journal of pharmaceutics.

INHALER DEVICES : THE PAST , THE PRESENT , AND THE FUTURE

J. Virchow, H. Chrystyn, S. Wong, 2015 .

Clarifying the dilemmas about inhalation techniques for dry powder inhalers: integrating science with clinical practice.

H. Chrystyn, Wahida Azouz, W. Azouz, 2012, Primary care respiratory journal : journal of the General Practice Airways Group.

Aerodynamic characteristics of a dry powder inhaler at low inhalation flows using a mixing inlet with an Andersen Cascade Impactor.

H. Chrystyn, K. Assi, D. Nadarassan, 2010, European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.

Emitted dose estimates from Seretide Diskus and Symbicort Turbuhaler following inhalation by severe asthmatics.

H. Chrystyn, K. Assi, S. Pearson, 2006, International journal of pharmaceutics.

In-vitro intra- and inter-inhaler flow rate-dependent dosage emission from a combination of budesonide and eformoterol in a dry powder inhaler.

H. Chrystyn, K. Assi, W. Tarsin, 2004, Journal of Aerosol Medicine.

P209 Impact of Patient Satisfaction with Their Maintenance Inhaler on Treatment Compliance and Health Outcomes in Chronic Obstructive Pulmonary Disease: An Analysis of Real-World Clinical Practise in Europe

H. Chrystyn, E. G. Gil, V. Higgins, 2012, Thorax.

Preference, satisfaction and critical errors with Genuair and Breezhaler inhalers in patients with COPD: a randomised, cross-over, multicentre study

J. Haughney, H. Chrystyn, S. Pascual, 2015, npj Primary Care Respiratory Medicine.

Measurement of peak inhalation rates with an in-check meter to identify an elderly patient's ability to use a turbuhaler.

H. Chrystyn, A. Alldred, W. Nsour, 2001, Respiratory medicine.

Methods to identify drug deposition in the lungs following inhalation.

H. Chrystyn, 2001, British journal of clinical pharmacology.

A randomised open-label cross-over study of inhaler errors, preference and time to achieve correct inhaler use in patients with COPD or asthma: comparison of ELLIPTA with other inhaler devices

H. Chrystyn, Mike Thomas, J. van der Palen, 2017, npj Primary Care Respiratory Medicine.

Evaluation of an in vitro in vivo correlation for nebulizer delivery using artificial neural networks.

Marcel de Matas, Henry Chrystyn, H. Chrystyn, 2007, Journal of pharmaceutical sciences.

Predicting the clinical effect of a short acting bronchodilator in individual patients using artificial neural networks.

H. Chrystyn, O. Usmani, Q. Shao, 2010, European Journal of Pharmaceutical Sciences.

Relative lung bioavailability of generic sodium cromoglycate inhalers used with and without a spacer device.

H. Chrystyn, O. Aswania, 2001, Pulmonary pharmacology & therapeutics.

Pharmacoeconomic evaluation of a patient education letter aimed at reducing long-term prescribing of benzodiazepines

Henry Chrystyn, H. Chrystyn, Julie D. Morgan, 2002, Pharmacy World and Science.

Budesonide + formoterol delivered via Spiromax® for the management of asthma and COPD: The potential impact on unscheduled healthcare costs of improving inhalation technique compared with Turbuhaler®.

H. Chrystyn, Y. Zöllner, A. Melani, 2017, Respiratory medicine.

Real life dose emission characterization using COPD patient inhalation profiles when they inhaled using a fixed dose combination (FDC) of the medium strength Symbicort® Turbuhaler®.

H. Chrystyn, G. Bagherisadeghi, El Hassane Larhrib, 2017, International journal of pharmaceutics.

The impact of inhaler technique on clinical outcomes in adolescents and adults with asthma: A systematic review.

H. Chrystyn, N. Roche, I. Boucot, 2022, Respiratory medicine.

Dose emission and aerodynamic characterization of the terbutaline sulphate dose emitted from a Turbuhaler at low inhalation flow

H. Chrystyn, Mohamed E A Abdelrahim, K. Assi, 2013, Pharmaceutical development and technology.

The Diskus™: a review of its position among dry powder inhaler devices

H. Chrystyn, 2007, International journal of clinical practice.

Effects of device design on patient compliance : Comparing the same drug in different devices.

H. Chrystyn, 2009 .

Can patients use all dry powder inhalers equally well?

H. Chrystyn, P. Zanen, A. Taylor, 2005, International journal of clinical practice. Supplement.

The potential of a 2Tone Trainer to help patients use their metered-dose inhalers.

H. Chrystyn, Raid A M Al-Showair, S. Pearson, 2007, Chest.

What you need to know about inhalers and how to use them

H. Chrystyn, D. Price, 2009 .

Incidence of oral thrush in patients with COPD prescribed inhaled corticosteroids: Effect of drug, dose, and device.

D. Price, J. Soriano, S. Bosnic-Anticevich, 2016, Respiratory medicine.

A Logistic Regression Analysis of Predictors for Asthma Hospital Re-admissions

H. Chrystyn, J. Salamzadeh, H. Hosker, 2003 .

University of Huddersfield Repository Improved Metered Dose Inhaler Technique When a Coordination Cap Is Used

John Stephenson, Henry Chrystyn, H. Chrystyn, 2022 .

Validation of high-performance liquid chromatography assay for quantification of formoterol in urine samples after inhalation using UV detection technique.

H. Chrystyn, B. Clark, K. Assi, 2007, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Factors Affecting the Stability of Nanoemulsions—Use of Artificial Neural Networks

Amir Amani, Peter York, Brian J. Clark, 2009, Pharmaceutical Research.

Is inhaled beclomethasone (BDP) with a non-CFC propellant equivalent to the CFC propellant formulations?

H. Chrystyn, 2000, Respiratory medicine.

Clinical pharmacy in primary care.

H. Chrystyn, G. Hawksworth, 1998, British journal of clinical pharmacology.

Relative bioavailability of salbutamol to the lung following inhalation via a novel dry powder inhaler and a standard metered dose inhaler.

H. Chrystyn, M. Parry-Billings, E. Peers, 2003, British journal of clinical pharmacology.

Determination of the relative bioavailability of salbutamol to the lungs and systemic circulation following nebulization.

H. Chrystyn, S. Corlett, V. Silkstone, 2002, British journal of clinical pharmacology.

The Diskus® Inhaler

Henry Chrystyn, H. Chrystyn, 1999 .

Relative lung and systemic bioavailability of sodium cromoglycate inhaled products using urinary drug excretion post inhalation

H. Chrystyn, O. Aswania, 2002, Biopharmaceutics & drug disposition.

Relative lung and total systemic bioavailability following inhalation from a metered dose inhaler compared with a metered dose inhaler attached to a large volume plastic spacer and a jet nebuliser

H. Chrystyn, S. Corlett, V. Silkstone, 2001, European Journal of Clinical Pharmacology.

Ex-vivo study of Symbicort using inhalation profiles of patients with chronic obstructive pulmonary disease (COPD)

H. Chrystyn, H. Larhrib, G. Bagherisadeghi, 2014 .

Characterization of the inspiratory manoeuvre when asthmatics inhale through a Turbohaler pre- and post-counselling in a community pharmacy.

H. Chrystyn, G. Hawksworth, L. James, 2000, Respiratory medicine.

Co-deposition of salmeterol and fluticasone propionate by a combination inhaler.

Brandon Whitcher, Alison Moore, Henry Chrystyn, 2006, International journal of pharmaceutics.

Evaluation of a Nanoemulsion-Based Formulation for Respiratory Delivery of Budesonide by Nebulizers

H. Chrystyn, P. York, A. Amani, 2010, AAPS PharmSciTech.

Determination of the Relative Bioavailability of Salbutamol to the Lungs Following Inhalation from Dry Powder Inhaler Formulations Containing Drug Substance Manufactured by Supercritical Fluids and Micronization

H. Chrystyn, R. Mukherjee, M. Matas, 2007, Pharmaceutical Research.

Development, implementation and cost-effectiveness of a protocol for review of combination diuretic prescribing.

A. Booth, H. Chrystyn, B. George, 2003, British journal of clinical pharmacology.

Therapeutic drug and biochemical monitoring in a community pharmacy: Part 2

H. Chrystyn, G. Hawksworth, 1995 .

Meeting abstracts from the Respiratory Effectiveness Group 2015 Winter Summit – databases and registries around the world: maximizing the yield

Jonathan D. Campbell, D. Postma, C. Rand, 2015, Pragmatic and Observational Research.

A Predictive Machine Learning Tool for Asthma Exacerbations: Results from a 12-Week, Open-Label Study Using an Electronic Multi-Dose Dry Powder Inhaler with Integrated Sensors

T. Hill, Randall Brown, H. Chrystyn, 2022, Journal of asthma and allergy.

Relative bioavailability of sodium cromoglycate to the lung following inhalation, using urinary excretion.

H. Chrystyn, S. Corlett, O. Aswania, 1999, British journal of clinical pharmacology.

In vitro aerodynamic characterization of the dose emitted during nebulization of tobramycin high strength solution by novel and jet nebulizer delivery systems.

H. Chrystyn, B. Clark, K. Assi, 2016, Pulmonary pharmacology & therapeutics.

A reply:: Letters to the Editors

H. Chrystyn, 2001 .

Is total Darticle dose more imDortant than particle

H. Chrystyn, 1997 .

Anatomy and physiology in delivery: can we define our targets?

H. Chrystyn, 1999, Allergy.

Relative bioavailability of salbutamol to the lung following inhalation using metered dose inhalation methods and spacer devices.

H. Chrystyn, M. Hindle, Michael Hindle, 1994, Thorax.

IN‐VITRO COMPARISONS OF INHALED PRODUCTS

H. Chrystyn, 1994 .

Choosing inhaler devices for people with asthma: current knowledge and outstanding research needs.

David Price, Nicolas Roche, Henry Chrystyn, 2010, Respiratory medicine.

Development and validation of HPLC method for the determination of tobramycin in urine samples post-inhalation using pre-column derivatisation with fluorescein isothiocyanate.

H. Chrystyn, B. Clark, K. Assi, 2008, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Is diet partly responsible for differences in COVID-19 death rates between and within countries?

Ana C. Coelho, Todor A Popov, I. Pavord, 2020, Clinical and Translational Allergy.

Determination of gentamicin in urine samples after inhalation by reversed-phase high-performance liquid chromatography using pre-column derivatisation with o-phthalaldehyde.

H. Chrystyn, B. Clark, A. I. Al-Amoud, 2002, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Urinary pharmacokinetic methodology to determine the relative lung bioavailability of inhaled beclometasone dipropionate.

H. Chrystyn, Lindsay P. Harding, Amira S. A. Said, 2011, British journal of clinical pharmacology.

ARIA pharmacy 2018 “Allergic rhinitis care pathways for community pharmacy”

Todor A Popov, A. Sheikh, T. To, 2019, Allergy.

High-performance liquid chromatographic determination of the enantiomers of cyclophosphamide in serum.

H. Chrystyn, S. Corlett, 1996, Journal of chromatography. B, Biomedical applications.

Nrf2-interacting nutrients and COVID-19: time for research to develop adaptation strategies

Ana C. Coelho, Todor A Popov, I. Pavord, 2020, Clinical and Translational Allergy.

Effect of Theophylline as Adjunct to Inhaled Corticosteroids on Exacerbations in Patients With COPD: A Randomized Clinical Trial

A. Morice, J. Haughney, H. Chrystyn, 2018, JAMA.

Ondansetron therapy for uremic pruritus in hemodialysis patients.

H. Chrystyn, C. Newstead, C. Newstead, 2000, American journal of kidney diseases : the official journal of the National Kidney Foundation.

Inhaler competence in asthma: common errors, barriers to use and recommended solutions.

G Scheuch, J Bousquet, C. Rand, 2013, Respiratory medicine.

Correction to: Is diet partly responsible for differences in COVID-19 death rates between and within countries?

Ana C. Coelho, Todor A Popov, I. Pavord, 2020, Clinical and Translational Allergy.

Low-dose oral theophylline combined with inhaled corticosteroids for people with chronic obstructive pulmonary disease and high risk of exacerbations: a RCT.

A. Morice, J. Haughney, H. Chrystyn, 2019, Health technology assessment.

The economic burden of asthma and chronic obstructive pulmonary disease and the impact of poor inhalation technique with commonly prescribed dry powder inhalers in three European countries

H. Chrystyn, P. Dekhuijzen, S. Torvinen, 2016, BMC Health Services Research.

Real-life inhaler adherence and technique: Time to get smarter!

H. Chrystyn, N. Roche, M. Keller, 2019, Respiratory medicine.

Use of low-dose oral theophylline as an adjunct to inhaled corticosteroids in preventing exacerbations of chronic obstructive pulmonary disease: study protocol for a randomised controlled trial

A. Morice, J. Haughney, H. Chrystyn, 2015, Trials.

dose oral theophylline as an adjunct to inhaled corticosteroids in preventing exacerbations of chronic obstructive pulmonary disease : study protocol for a randomised controlled trial

A. Morice, J. Haughney, H. Chrystyn, 2015 .

Impact of patients' satisfaction with their inhalers on treatment compliance and health status in COPD.

H. Chrystyn, E. G. Gil, V. Higgins, 2014, Respiratory medicine.

A randomised open-label cross-over study of inhaler errors, preference and time to achieve correct inhaler use in patients with COPD or asthma: comparison of ELLIPTA with other inhaler devices

H. Chrystyn, J. van der Palen, P. Van der valk, 2016, npj Primary Care Respiratory Medicine.

Inhaled corticosteroids for asthma: impact of practice level device switching on asthma control

D. Price, H. Chrystyn, J. von Ziegenweidt, 2009, BMC pulmonary medicine.

Advancing Digital Solutions to Overcome Longstanding Barriers in Asthma and COPD Management

S. Bosnic-Anticevich, H. Chrystyn, M. Hew, 2023, Patient preference and adherence.

Clinical pharmacy interventions by community pharmacists during the dispensing process.

H. Chrystyn, H Chrystyn, G M Hawksworth, 1999, British journal of clinical pharmacology.

Investigating the Accuracy of the Digihaler, a New Electronic Multidose Dry-Powder Inhaler, in Measuring Inhalation Parameters

H. Chrystyn, D. Saralaya, G. Safioti, 2021, Journal of aerosol medicine and pulmonary drug delivery.

The inhalation characteristics of patients when they use different dry powder inhalers.

H. Chrystyn, D. Saralaya, Wahida Azouz, 2015, Journal of aerosol medicine and pulmonary drug delivery.

The value of inpatient pharmaceutical counselling to elderly patients prior to discharge.

H. Chrystyn, D. Wright, S. AL-Rashed, 2002, British journal of clinical pharmacology.

Prescribing of lipid lowering drugs to South Asian patients: ecological study

P. Gill, H. Chrystyn, D. Jerwood, 2002, BMJ : British Medical Journal.

A Validated Liquid Chromatography-Tandem Mass Spectrometry Coupled with Liquid-Liquid Extraction for Indacaterol Quantitation in Human Plasma

H. Chrystyn, I. Basheti, R. Tayyem, 2015 .

Harmonizing the Nomenclature for Therapeutic Aerosol Particle Size: A Proposal.

D. Price, E. Israel, H. Chrystyn, 2017, Journal of aerosol medicine and pulmonary drug delivery.

The relationship between the quality of prescribing and practice appointment rates with asthma management data in those admitted to hospital due to an acute exacerbation.

H. Chrystyn, I. Wong, J. Salamzadeh, 2005, Respiratory medicine.

Practice Appointment Rates for High-risk Asthmatics: What could be the Predictor(s)?

H. Chrystyn, I. Wong, J. Salamzadeh, 2004 .

NEXThaler, an innovative dry powder inhaler delivering an extrafine fixed combination of beclometasone and formoterol to treat large and small airways in asthma

H. Chrystyn, O. Usmani, M. Corradi, 2014, Expert opinion on drug delivery.

Measurement of the (R)- and (S)-isomers of warfarin in patients undergoing anticoagulant therapy.

H. Chrystyn, S. McAleer, A. S. Foondun, 1992, Chirality.

The Burden of Self-Reported Rhinitis and Associated Risk for Exacerbations with Moderate-Severe Asthma in Primary Care Patients

D. Price, J. Haughney, D. Ryan, 2020, Journal of asthma and allergy.

Investigations of an optimal inhaler technique with the use of urinary salbutamol excretion as a measure of relative bioavailability to the lung.

H. Chrystyn, D. Newton, M. Hindle, 1993, Thorax.

An investigation of hospital generated pharmaceutical care when patients are discharged home from hospital.

H. Chrystyn, L. Mcgowan, C. Moss-Barclay, 2003, British journal of clinical pharmacology.

Effectiveness of shared pharmaceutical care for older patients: RESPECT trial findings.

H. Chrystyn, I. Russell, P. Campion, 2010, The British journal of general practice : the journal of the Royal College of General Practitioners.

Investigating inhaler device mastery in pharmacist trainees

C. Rand, S. Bosnic-Anticevich, H. Chrystyn, 2015 .

Real-life inhalation therapy – inhaler performance and patient education matter

H. Chrystyn, T. Haathala, 2012 .

Bayesian derived predictions for twice daily theophylline under outpatient conditions and an assessment of optimal sampling times.

H. Chrystyn, M. Peake, H Chrystyn, 1989, British journal of clinical pharmacology.

Systematic review of association between critical errors in inhalation and health outcomes in asthma and COPD

H. Chrystyn, J. van der Palen, S. Landis, 2018, npj Primary Care Respiratory Medicine.

Evaluation of in vitro in vivo correlations for dry powder inhaler delivery using artificial neural networks.

Marcel de Matas, Henry Chrystyn, H. Chrystyn, 2008, European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.

Closer to an ‘Ideal Inhaler’ with the Easyhaler®

H. Chrystyn, 2006, Clinical drug investigation.

Dry powder versus intravenous and nebulized gentamicin in cystic fibrosis and bronchiectasis. A pilot study.

H. Chrystyn, M. Newhouse, A. Holbrook, 1999, American journal of respiratory and critical care medicine.

The accuracy of a pharmacokinetic theophylline predictor using once daily dosing.

H. Chrystyn, M. Peake, H Chrystyn, 1987, British journal of clinical pharmacology.

"Trying, But Failing" - The Role of Inhaler Technique and Mode of Delivery in Respiratory Medication Adherence.

D. Price, S. Bosnic-Anticevich, H. Chrystyn, 2016, The journal of allergy and clinical immunology. In practice.

Ifosfamide enantiomers: pharmacokinetics in children

H. Chrystyn, D. Heney, I. Lewis, 2004, Cancer Chemotherapy and Pharmacology.

Pharmacokinetics of ifosfamide and its enantiomers following a single 1 h intravenous infusion of the racemate in patients with small cell lung carcinoma.

H. Chrystyn, S. Corlett, D. Parker, 1995, British journal of clinical pharmacology.

Relationship of Inhaled Corticosteroid Adherence to Asthma Exacerbations in Patients with Moderate-to-Severe Asthma.

D. Price, D. Ryan, J. Soriano, 2018, The journal of allergy and clinical immunology. In practice.

Improved bioavailability from a spironolactone beta-cyclodextrin complex

H. Chrystyn, P. York, M. Losowsky, 2004, European Journal of Clinical Pharmacology.

Is inhalation rate important for a dry powder inhaler? Using the In-Check Dial to identify these rates.

H. Chrystyn, H Chrystyn, 2003, Respiratory medicine.

The Accuracy and Stability of Bayesian Theophylline Predictions

H. Chrystyn, H. Chrystyn, M. Peake, 1988, Therapeutic drug monitoring.

Cost-effectiveness of shared pharmaceutical care for older patients: RESPECT trial findings.

M. Sculpher, H. Chrystyn, I. Russell, 2010, The British journal of general practice : the journal of the Royal College of General Practitioners.

Enantiomeric separation of R- and S-ifosfamide and their determination in serum from clinical subjects.

H. Chrystyn, S. Corlett, 1994, Journal of chromatography. B, Biomedical applications.

Development and validation of an ion-pair liquid chromatographic method for the quantitation of sodium cromoglycate in urine following inhalation.

H. Chrystyn, S. Corlett, O. Aswania, 1997, Journal of chromatography. B, Biomedical sciences and applications.

Do patients show the same level of adherence with all dry powder inhalers?

H. Chrystyn, Henry Chrystyn, 2005, International journal of clinical practice. Supplement.

Relative bioavailability of salbutamol to the lung following inhalation when administration is prolonged.

H. Chrystyn, H. S. Tomlinson, S. Corlett, 2000, British journal of clinical pharmacology.

Improved bioavailability and clinical response in patients with chronic liver disease following the administration of a spironolactone: beta-cyclodextrin complex.

H. Chrystyn, P. York, M. Losowsky, 2003, British Journal of Clinical Pharmacology.

Systematic review of association between critical errors in inhalation and health outcomes in asthma and COPD

H. Chrystyn, J. van der Palen, S. Landis, 2018, npj Primary Care Respiratory Medicine.

P154 Evaluation of Inhaler Technique Mastery for Budesonide Formoterol Spiromax® Compared with Symbicort Turbohaler® in Adult Patients with Asthma: Primary Results From the Easy Low Instruction Over Time [ELIOT] Study

C. Rand, H. Chrystyn, N. Roche, 2015 .

Inhaled corticosteroids for asthma: impact of practice level device switching on asthma control.

D. Price, H. Chrystyn, J. von Ziegenweidt, 2009, BMC pulmonary medicine.

What happens to patients who have their asthma device switched without their consent?

D. Price, H. Chrystyn, M. Moffat, 2010, Primary care respiratory journal : journal of the General Practice Airways Group.

Real-life inhaler technique in asthma patients using the electronic ProAir Digihaler

T. Hill, H. Chrystyn, R. Pleasants, 2019, Airway pharmacology and treatment.

Implementation of statin prescribing guidelines: a cost effectiveness analysis

J. D. Morgan, H. Chrystyn, D. Wright, 2001 .

The prediction of steady-state plasma phenobarbitone concentrations (following low-dose phenobarbitone) to refine its use as an indicator of compliance.

H. Chrystyn, T. Pullar, S. Kumar, 1991, British journal of clinical pharmacology.

Evaluation of supercritical fluid engineered budesonide powder for respiratory delivery using nebulisers.

H. Chrystyn, P. York, Mohamed E A Abdelrahim, 2009, The Journal of pharmacy and pharmacology.

Lung bioavailability of chlorofluorocarbon free, dry powder and chlorofluorocarbon containing formulations of salbutamol.

H. Chrystyn, 1996, British Journal of Clinical Pharmacology.

Lung bioavailability of generic and innovator salbutamol MDIs.

H. Chrystyn, S. Corlett, V. Silkstone, 1996, Thorax.

The relative bioavailability of salbutamol to the lung using urinary excretion following inhalation from a novel dry powder inhaler: the effect of inhalation rate and formulation.

H. Chrystyn, J. K. Chege, 2000, Respiratory medicine.

Volumatic usage: some generic salbutamol metered dose inhalers can be used.

H. Chrystyn, J. K. Chege, 1994, Thorax.

Determination of the relative bioavailability of nedocromil sodium to the lung following inhalation using urinary excretion

H. Chrystyn, S. Corlett, O. Aswania, 1998, European Journal of Clinical Pharmacology.

Evaluation of In‐vivo Lung Deposition Following Inhalation from a Rotahaler and Cyclohaler Using Urinary Salbutamol Excretion

H. Chrystyn, J. K. Chege, 1996 .

Indacaterol determination in human urine: validation of a liquid-liquid extraction and liquid chromatography-tandem mass spectrometry analytical method.

H. Chrystyn, I. Basheti, R. Tayyem, 2015, Journal of aerosol medicine and pulmonary drug delivery.

Dose-response relationship and reproducibility of urinary salbutamol excretion during the first 30 min after an inhalation.

H. Chrystyn, H. S. Tomlinson, S. Corlett, 2003, British journal of clinical pharmacology.

Validation of a high-performance liquid chromatography assay for urinary nedocromil sodium following oral and inhaled administration.

H. Chrystyn, S. Corlett, O. Aswania, 1998, Journal of chromatography. B, Biomedical sciences and applications.

Salbutamol relative lung and systemic bioavailability of large and small spacers.

H. Chrystyn, S. H. Mazhar, 2008, The Journal of pharmacy and pharmacology.

A COMPARISON OF GRAPHICAL NOMOGRAM METHODS WITH A COMPUTERIZED BAYESIAN ANALYSIS METHOD IN THE INTERPRETATION OF SERUM PHENYTOIN CONCENTRATIONS

H. Chrystyn, H Chrystyn, D H Morgan, 1986, Journal of clinical and hospital pharmacy.

In vitro aerodynamic characteristics of aerosol delivered from different inhalation methods in mechanical ventilation

H. Chrystyn, Mohamed E A Abdelrahim, H. Rabea, 2017, Pharmaceutical development and technology.

Inhaled corticosteroids for asthma : impact of practice level device switching on asthma control

H. Chrystyn, J. V. Ziegenweidt, A. Lloyd, 2016 .

Inhaler competence in asthma: common errors, barriers to use and recommended solutions.

S. Bosnic-Anticevich, H. Chrystyn, A. Briggs, 2013, Respiratory medicine.

A randomised comparison of practice pharmacist-managed hypertension providing Level 3 Medication Review versus usual care in general practice.

H. Chrystyn, A. Scally, L. Jamieson, 2010 .

Low-dose oral theophylline combined with inhaled corticosteroids for people with chronic obstructive pulmonary disease and high risk of exacerbations: a RCT.

A. Morice, J. Haughney, H. Chrystyn, 2019, Health technology assessment.

BAYESIAN DERIVED PHARMACOKINETIC/PHARMACODYNAMIC VARIABLES FROM WARFARIN THERAPY

H. Chrystyn, D. Newton, S. McAleer, 1990 .

A Cox Regression Analysis of Covariates for Asthma Hospital Readmissions

H. Chrystyn, J. Salamzadeh, H Chrystyn, 2003, The Journal of asthma : official journal of the Association for the Care of Asthma.

MEASUREMENT OF WARFARIN STEREOISOMERS IN CLINICAL SAMPLES

H. Chrystyn, S. McAleer, 1990 .

Steady-state clearance rates of warfarin and its enantiomers in therapeutically dosed patients.

H. Chrystyn, M. Feely, S. McAleer, 1997, Chirality.

AN ASSESSMENT OF POPULATION‐BASED AND BAYESIAN METHODS TO INDIVIDUALIZE DIGOXIN DOSES SHORTLY AFTER THE START OF THERAPY FOR ATRIAL FIBRILLATION

H. Chrystyn, H Chrystyn, S Dean, 1991, Journal of clinical pharmacy and therapeutics.

Achieving asthma control in practice: understanding the reasons for poor control.

D. Price, R. Horne, J. Haughney, 2008, Respiratory medicine.