list of phosphodiesterase inhibitors list of phosphodiesterase inhibitors the following is a list of phosphodiesterase inhibitors. list adibendan aminophylline aminophylline dihydrate amipizone apremilast arofylline atizoram befuraline bemarinone hydrochloride bemoradan benafentrine bucladesine buflomedil buquineran cc-1088 carbazeran catramilast cilomilast cilostamide cilostazol cipamfylline crisaborole daxalipram denbufylline dimabefylline diniprofylline dipyridamole doxofylline drotaverine dyphylline enoximone etamiphyllin etofylline filaminast flufylline fluprofylline furafylline imazodan imazodan hydrochloride inamrinone inamrinone lactate isbufylline lirimilast lisofylline lomifylline medorinone metescufylline midaxifylline milrinone milrinone lactate motapizone nanterinone nestifylline nitraquazone oglemilast oglemilast sodium olprinone oxagrelate oxtriphylline papaverine papaverine hydrochloride papaverine sulfate parogrelil pelrinone hydrochloride pentifylline pentoxifylline perbufylline piclamilast pimefylline pimobendan piroximone prinoxodan proxyphylline pumafentrine quazinone quazodine revamilast revizinone roflumilast rolipram ronomilast saterinone senazodan siguazodan tetomilast tofimilast trapidil vesnarinone zardaverine cgmp phosphodiesterase inhibitors aminotadalafil avanafil beminafil dasantafil gisadenafil gisadenafil besylate mirodenafil sildenafil sildenafil citrate tadalafil udenafil vardenafil vardenafil dihydrochloride vardenafil hydrochloride trihydrate zaprinast