Smith1; Mary Babos2. Although not all of these side effects may occur, if they do occur they may need medical attention. If you take too much sildenafil or take it together with these medicines, the chance for side effects will be higher. Sildenafil is in a class of medications called phosphodiesterase PDE inhibitors. Do not take it more than once a day. You could also ask your pharmacist for advice on other ways to help you remember to take your medicine. Summarize the role of the interprofessional healthcare team in improving care coordination and communication to improve outcomes related to sildenafil therapy.Bookshelf ID: NBK PMID: Sildenafil is a medication used in the management and treatment of erectile dysfunction and pulmonary arterial hypertension. It is in the phosphodiesterase-5 inhibitor (PDE5-I) class of medications. This activity describes the indications, actions, adverse effects, and contraindications of . It’s available as a lower-cost generic. Reviewed by: Allison Barnes, PharmD. Kristianne Hannemann, PharmD. Last reviewed on November 10, savings_outlined. GoodRx lowest price. $ (save %) local_offer_outlined. Avg retail price. $ Sildenafil Citrate mg Tablet. This medicine is Blue, Round Tablet Imprinted With . Viagra comes as an oral tablet in different dosages. Discuss with your doctor what’s an appropriate dose for you. For daily use, Goldstein said, the generic form, sildenafil, comes in mg tablets.