7-(1,3-Dioxolan-2-ylmeth­yl)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione acetic acid solvate

In the title compound, C11H14N4O4·C2H4O2, the doxofylline and acetic acid mol­ecules are linked by O—H⋯N hydrogen bonds.