This is important for your overall health and safety, as certain medications can negatively interact with each other or cause existing conditions to worsen. The body takes longer to absorb it after a high-fat meal or alcohol. You’ll also need to fill out a medical questionnaire with answers about your medical history, current medications, and lifestyle habits. You are encouraged to report adverse events related to Viatris products by calling U. These include a heart attack, stroke or a serious heart rhythm disorder in the past six months. Sildenafil Viagra.Sildenafil (Viagra, Revatio) is a moderately priced drug used to treat erection problems in men. It is also used to treat pulmonary arterial hypertension, a serious heart and lung drug is more popular than comparable drugs. It is available in generic and brand versions. Generic sildenafil is covered by most Medicare and insurance plans, but . Take pills that help you get an erection. These pills are called PDE-5 inhibitors. They include sildenafil (such as Viagra), tadalafil (such as Cialis), and vardenafil (such as Levitra). Check with your doctor to see if it’s safe for you to take one of these medicines with your other medicines. Generic Viagra (sildenafil): $4 per 25 mg pill, $6 per 50 mg pill, $10 per mg pill; Branded Viagra: $90 per 25 mg, 50 mg, or mg pill; Generic Cialis (tadalafil): $11 per 5 mg pill, $44 per 10 mg or 20 mg pill; Generic Cialis Daily (tadalafil): $8 per mg or 5 mg pill; Branded Cialis: $10 per 5 mg pill, $80 per 10 mg or 20 mg pill.