Paxil is used to treat Anxiety, Premenstrual dysphoric disorder, Seasonal Affective Disorder. The generic version is called Paroxetine hydrochloride. The average Paxil cash price is about $161.30 for a supply of Tablet 40 MG 30 pcs. You can reduce your Paxil cost by up to 75% with our free Paxil discount card. Bring it to a participating pharmacy near you to save on your prescription medication.