viagra cost

Viagra is a medication used to treat erectile dysfunction (ED) in men. It is the brand name for sildenafil citrate, which belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. Viagra works by relaxing the blood vessels in the penis, allowing for increased blood flow and resulting in an erection.

Viagra tablets come in three strengths: 25mg, 50mg, and 100mg. The recommended starting dose is typically 50mg, taken approximately one hour before sexual activity. The dose may be adjusted based on the individual's response and tolerability. It does this by inhibiting the PDE5 enzyme, which is responsible for breaking down a chemical called cyclic guanosine monophosphate (cGMP) that is involved in the relaxation of smooth muscle tissue.

Viagra tablets are available in doses of 25mg, 50mg, and 100mg, and are usually taken orally about 30-60 minutes before sexual activity. The recommended starting dose is typically 50mg, but this may be adjusted based on the individual's response to the medication and any underlying health conditions.