Will Pseudoephedrine dissolve faster in hydrochloric acid that diphenhydramine will?

Pseudoephedrine is a basic compound, while diphenhydramine is a weak base with some acidic characteristics. In hydrochloric acid, pseudoephedrine is likely to dissolve faster due to its ionization in an acidic environment, which enhances its solubility. Diphenhydramine may not dissolve as readily because it does not ionize as effectively in strong acid compared to pseudoephedrine. Therefore, pseudoephedrine is expected to dissolve faster in hydrochloric acid than diphenhydramine.