Is expired Viagra still effective?

Dec 7, 2024 ... Frequently asked questions about Viagra · Mild side effects. Headache · Serious side effects. Priapism (a persistent and painful erection that ... These drugs include sildenafil (Viagra) and tadalafil (Cialis). ... Although sildenafil had a modest anti-inflammatory effect, no protective effects were observed ... Sildenafil caused small, clinically insignificant reductions in ambulatory BP in active and resting normotensive and hypertensive men. The most common side effects are headaches, feeling sick, indigestion and dizziness. Many people have no side effects or only mild ones. It can be dangerous to ... Rare but serious side effects include vision problems, hearing loss, and prolonged erection (priapism) that can lead to damage to the penis. Sildenafil should ... Viagra (Sildenafil) has ... Kloner, R.A.. Cardiovascular effects of the 3 phosphodiesterase-5 inhibitors approved for the treatment of erectile dysfunction. Mar 25, 2025 ... How can you improve your overall health for better Viagra results? Can you make Viagra work faster? Myths debunked. What are the side effects of ... Nov 25, 2002 ... Phosphodiesterase (PDE)-5 degrades guanosine 3′,5′cyclic monophosphate (cGMP) and its inhibitor sildenafil citrate (Viagra) treats erectile ... Feb 17, 2001 ... Here is why inhibition of the PDE has that effect: nitric oxide causes the production of a secondary signaling chemical, cyclic GMP, which leads ... Feb 25, 2020 ... Sildenafil, sold under the brand name Viagra, is ... Side effects most often emerge in men with other underlying health conditions.