Understanding How Viagra Works and Dosage Options
How Does Viagra Work in the Body?
Viagra contains sildenafil citrate, which belongs to a class of medications called PDE5 inhibitors. When a man becomes sexually aroused, Viagra works by blocking the phosphodiesterase type 5 enzyme, which increases blood flow to the penis. It's important to understand that Viagra does not cause automatic erections - sexual stimulation is still required for the medication to be effective.
Viagra Dosage Strengths and Starting Recommendations
Viagra is available in three dosage strengths in the UK: 25mg, 50mg, and 100mg tablets. Healthcare providers typically recommend starting with 50mg, taken approximately one hour before sexual activity. Based on effectiveness and how well the medication is tolerated, the dose may be adjusted up to 100mg or down to 25mg. The maximum recommended frequency is one dose per 24-hour period.
Timing and Effectiveness Factors
For optimal effectiveness, Viagra should be taken on a relatively empty stomach, as fatty meals can delay absorption and reduce the medication's onset of action. Most men experience effects within 30-60 minutes of taking the tablet, with peak effectiveness typically occurring 1-2 hours after administration. The effects can last up to 4-6 hours, providing a window of opportunity for sexual activity.
Branded Viagra vs Generic Sildenafil Options
EverydayMeds offers both branded Viagra manufactured by Pfizer and generic sildenafil alternatives at checkout. Both contain exactly the same active ingredient - sildenafil citrate - and work in identical ways. The main difference is cost, with generic sildenafil typically being significantly more affordable while providing the same clinical effectiveness. Patients can choose their preferred option during the consultation process.
Who Can Use Viagra and Important Considerations
Viagra requires a prescription in the UK and is suitable for adult men experiencing erectile dysfunction. Before prescribing, healthcare providers assess cardiovascular health, current medications, and medical history. The medication is not suitable for men taking nitrates for heart conditions, those with severe heart disease, or men with certain other medical conditions. A thorough consultation helps ensure safe and appropriate treatment.
What to Expect When Starting Treatment
Men starting Viagra treatment should understand that effectiveness may vary between individuals. While clinical studies show Viagra helps approximately 70-80% of men with erectile dysfunction, factors such as underlying health conditions, stress levels, and relationship factors can influence outcomes. Some men may need to try different doses or discuss alternative treatments if initial results are not satisfactory.
Common Side Effects and Safety Information
Like all medications, Viagra can cause side effects, though most are mild and temporary. Common side effects may include headaches, facial flushing, indigestion, and nasal congestion. These typically resolve within a few hours. Serious side effects are rare but can include sudden vision or hearing loss, chest pain, or prolonged erections lasting more than four hours, which require immediate medical attention.
