Cialis vs Viagra
A side-by-side look at two men's health medications advertised on TV. Informational only — not medical advice.
| US Cialis | US Viagra | |
|---|---|---|
| Generic name | tadalafil | sildenafil |
| Drug class | PDE5 Inhibitor | PDE5 Inhibitor |
| Treats | Erectile dysfunction, enlarged prostate (BPH) | Erectile dysfunction |
| Category | Men's Health | Men's Health |
| Manufacturer | Eli Lilly | Pfizer |
| Year approved | 2003 | 1998 |
| FDA warning | No boxed warning | Moderate warnings |
| Est. TV ad spend | $100M | — |
| Common side effects | Headache, Flushing, Indigestion, Back pain | Headache, Flushing, Indigestion, Stuffy nose |
Frequently asked questions
Is Cialis or Viagra better?
Neither is universally "better." Cialis (tadalafil) and Viagra (sildenafil) are both used for men's health, but the right choice depends on your medical history, insurance and your doctor's guidance. This comparison is informational only.
What's the difference between Cialis and Viagra?
Cialis is a PDE5 Inhibitor made by Eli Lilly, while Viagra is a PDE5 Inhibitor made by Pfizer. See the table above for a side-by-side breakdown.
Which one spends more on TV ads?
Cialis has the larger estimated TV advertising budget of the two.