That means you can have erections whenever you want or need them. Pearlman says it can often take months to get an appointment with a healthcare provider who can prescribe the medications commonly used to treat ED. Viagra is also informally known as “vitamin V”, “the blue pill”, or “blue diamond”, as well as various other nicknames. How long does it take for Cialis to peak? It is thought that this reduced sales over the Internet and was safer as males could be referred for medical advice if appropriate. Both Cialis and Viagra are effective at these doses.1. It Targets the Problem and Works Quickly. Being a topical means MED targets your penis directly and offers a “quick onset of action,” Dr. Pearlman says. “People love spontaneity when it. Other options. There are several options to treat erectile dysfunction aside from oral medications like Cialis, including: erectile dysfunction pump, which can be a penis or vacuum pump. penile. Viagra Alternatives Compared. Viagra (sildenafil) Cialis (tadalafil) Sildenafil. Prescription only. Viagra is used to treat erectile dysfunction (ED), but will not have any effect in the absence of sexual stimulation. A headache, stomach upsets, and flushing are the main side effects. Prescribed more. Prescription only.