Take Viagra medication a few hours in advance

It is generally recommended to take Viagra within 30 minutes to 4 hours before sexual activity. The timing of medication is mainly influenced by factors such as diet, individual metabolic differences, drug formulation, concomitant medications, and physical condition.

Medication is absorbed quickly on an empty stomach, usually taking effect within 30 minutes to 1 hour. A high-fat diet may delay drug absorption and should be taken 1 to 2 hours in advance. Elderly patients or those with abnormal liver function have slower metabolic rates, and it is recommended to take it 2 to 3 hours in advance. There is a difference in the onset time between tablets and orally disintegrating tablets, please refer to the specific dosage form instructions. The combination with nitrate drugs may enhance the antihypertensive effect, and should be separated by at least 24 hours.

The active ingredient sildenafil in Viagra works by inhibiting phosphodiesterase 5. Common dosage forms include 25mg, 50mg, and 100mg. This medicine is suitable for patients with erectile dysfunction, who may experience adverse reactions such as headaches, facial flushing, and indigestion. During medication, alcohol and grapefruit juice should be avoided to prevent exacerbating vasodilation effects. Cardiovascular disease patients need to evaluate their exercise tolerance before medication to avoid inducing angina during sexual activity.

It is recommended to standardize medication under the guidance of a doctor and adjust the medication time according to the actual effect. If there are serious reactions such as sustained erection for more than 4 hours or sudden loss of vision after taking medication, medical attention should be sought immediately. Daily use of Mediterranean diet and aerobic exercise can improve vascular function and reduce dependence on medication. Maintaining a regular schedule and a positive mindset are equally important for men's health.