Online pharmacies allow you to fill prescription medications from the comfort of your home using a pharmacy site or an app rather than having to fill them in person. An online .Popular ED medications found online include: Viagra sildenafil : As the first FDA-approved PDE5 inhibitor for ED, sildenafil is taken 30 minutes to four hours before sexual intercourse to help achieve and maintain an erection. Taking generic ED medications is an effective way to save money without sacrificing quality. First and foremost, be sure that whichever online pharmacy you choose is legitimate, safe, and secure. You should also call your insurance company to see if they cover erectile dysfunction medications. The generic versions are just as effective and much less expensive.Sildenafil Citrate Coupons, Prices, and Savings Card Brand Names: Revatio, Viagra Sildenafil is used to treat male sexual function problems (impotence or erectile . Typical dosing for Sildenafil (Viagra) The typical dose is to take 50 mg of sildenafil (Viagra) by mouth, about 1 hour before sex, as needed. The maximum recommended . $12 View other PDE5 Inhibitors Sildenafil (Viagra, Revatio) is a moderately priced drug used to treat erection problems in men. It is also used to treat pulmonary arterial .Most online pharmacies do not prescribe or refill controlled substances, like Adderall, Xanax, or oxycodone. Most online providers require a picture of a valid ID, a selfie showing your face, and a recent blood pressure reading taken with a home blood pressure monitor or by a medical provider. Still other online pharmacies specialize in medications for only a select few health concerns or conditions. They have the same benefits and risks as their brand-name counterparts. Here are some key factors to consider when deciding: Pricing: Know how much your monthly supply will cost with shipping and tax. They require a prescription for any controlled substance and have a licensed pharmacist to answer questions rather than support staff. Payment options: Consider how you’d like to pay.