Diphenhydramine is a molecule that is a stable solid, and has potion effects. Diphenhydramine consists of seventeen-carbon, twenty-one-hydrogen, one-nitrogen, and one-oxygen thus giving it the formula of C17H21NO. In order to synthesize Diphenhydramine, one-hundred energy is required in the chemical synthesizer. When drank, it gives the player twenty-seconds of Nausea.