Your primary care doctor should always know what medications you’re taking, including ED pills prescribed by another provider. Taking sildenafil alone will not cause an erection. However, some states require a live video consultation. Erectile dysfunction medications require a prescription from a licensed provider. You’ll also need to fill out a medical questionnaire with answers about your medical history, current medications, and lifestyle habits.About sildenafil (Viagra) Sildenafil is a medicine used to treat erection problems (erectile dysfunction). Sildenafil is also sometimes used to treat pulmonary hypertension (high blood pressure in the blood vessels that supply the lungs). If you have erection problems sildenafil works by temporarily increasing blood flow to your penis when. VIAGRA can be taken with or without food. If you take VIAGRA after a high-fat meal or the Government Health Insurance Plan available in Puerto Rico (formerly known as “La Reforma de Salud”) This Savings Offer is not valid when the entire cost of your prescription drug is eligible to be reimbursed by your private insurance plans or. Best Long-Term Care: K Health Best Low Cost: GoodRx Fastest Delivery: Blink Health: Sesame Sign Up Now Key Specs Cost: Consultation prices vary based on .