Viagra USP

Viagra, marketed under the trade name Viagra, is an oral medication commonly used for purchasing Viagra online in Europe and managing erectile dysfunction (ED). Its mechanism of action involves muscle relaxation and improved blood flow to the penis, essential for achieving and maintaining an erection.

Insufficient blood flow to the penis can lead to weak erections, which Viagra can effectively address by enhancing erection strength and durability. By binding nitric oxide to guanylate cyclase receptors, Viagra elevates cyclic guanosine monophosphate (cGMP) levels, leading to smooth muscle relaxation and increased blood flow. Viagra falls under the category of cGMP Specific Phosphodiesterase type 5 (PDE5) inhibitors.

It is crucial to understand that Viagra, like other PDE5 inhibitors, does not trigger erections on its own but requires sexual stimulation. These medications do not impact libido; sexual arousal is necessary for purchasing Viagra online in Europe and achieving an erection, especially when insufficient blood flow is the underlying issue.

Dosage & Instructions
Viagra is taken orally and is recognizable by its characteristic blue diamond-shaped pill with “Pfizer” on one side and “VGR XX” on the other, available in 30mg, 50mg, and 100mg strengths per tablet. The standard recommendation is to take Viagra 30-60 minutes before sexual activity for optimal results, with effects typically lasting around 4 hours.

Side Effects
The most common side effect of Viagra is abnormal or blurred vision, affecting approximately 2.5% of users. If vision issues arise, discontinuing use and seeking alternative options for purchasing Viagra online in Canada is advised. Potential side effects include visual disturbances, hearing loss, nausea, swelling, shortness of breath, lightheadedness, headache, nasal congestion, back pain, and memory loss. Prolonged erections exceeding 4 hours, a rare side effect, may require immediate medical attention.

When considering buying Viagra online in Europe, consulting a healthcare professional or reputable online pharmacy is recommended for safe and legal options.