It’s available in 10 mg and 20 mg tablets. Viagra Choosing the right ED pill can be intimidating. Never purchase ED medications from a site or service that doesn’t require a prescription and medical documentation. This allows the smooth muscles in the penis to relax and fill with blood. It’s available in 50 mg, mg, and mg tablets. That means you can have erections whenever you want or need them. Some services offer a subscription option where they’ll send your medications every month at a discount.Medications Prescribed: Viagra, Cialis, sildenafil, tadalafil Generic offered: Yes Why We Chose It. The recommended starting dose for Cialis intended for once daily use is mg, take at the same time each day, without regard to timing of sexual activity. This may be increased to 5mg/day based on need and tolerability. May be taken with or without food. Cialis is available as a generic, under the name tadalafil. 3. We have good news for you: generic Cialis, used to treat erectile dysfunction (ED)and enlarged prostates, just hit pharmacies. Prices for the generic, known as .