Medicines
Discover all available medicines and treatments
Discover all available medicines and treatments
Brand: Viagra, Revatio, Kamagra, Sildenafil Teva
Sildenafil, commonly known by its brand name Viagra, is a medication primarily used to treat erectile dysfunction (ED) and pulmonary arterial hypertension (PAH). It belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. Sildenafil works by relaxing the muscles in the blood vessel walls, increasing blood flow to specific areas of the body. For ED, this increased blood flow facilitates an erection when sexual stimulation is present. For PAH, it reduces the blood pressure in the lungs, improving exercise capacity and symptoms.
Used to treat erectile dysfunction and pulmonary arterial hypertension.
Outcome:
Severe hypotension (low blood pressure)
Mechanism:
Synergistic vasodilation
Outcome:
Increased risk of hypotension
Mechanism:
Additive vasodilatory effects
Outcome:
Potential for slight increase in blood pressure
Mechanism:
Mild vasoconstriction
Most likely new formulation: Long-acting orodispersible film (2025, 70% confidence)
Based on current usage trends and emerging competitors, sildenafil is predicted to maintain a significant market share (approximately 60%) in the ED market over the next 5 years.
Phosphodiesterase 5 (PDE5) Inhibitor
Pyrazolopyrimidinone