It depends on the platform and insurance provider. Finding an online ED provider can feel overwhelming. Still other online pharmacies specialize in medications for only a select few health concerns or conditions. Cialis tadalafil : This ED medication works with the same principle as Viagra, but lasts up to 36 hours. 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. When taken at the correct time and paired with sexual stimulation, the erection lasts long enough for successful intercourse.If you’re holding out for a generic version of branded Viagra, you won’t have to wait much longer. Teva Pharmaceuticals plans to release its generic of the “little blue . Q&A Drug Images What is Viagra? If you have erectile dysfunction (ED), your doctor may recommend that you take Viagra. It’s a prescription drug that’s used in . 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): .