How Viagra Works and What to Expect
Understanding Viagra's Mechanism of Action
Viagra contains sildenafil citrate, a PDE5 inhibitor that works by increasing blood flow to the penis during sexual arousal. This prescription medication blocks the phosphodiesterase type 5 enzyme, allowing the smooth muscles in penile blood vessels to relax. It's important to understand that Viagra does not cause automatic erections - sexual stimulation is still required for the medication to be effective.
Expected Results and Timeline
Most men may experience the effects of Viagra within 30-60 minutes of taking the tablet. The medication's effects can potentially last 4-6 hours, though this doesn't mean an erection will persist throughout this period. Food intake, particularly fatty meals, may delay the onset of action. Clinical studies suggest that Viagra may be effective for approximately 70-85% of men with erectile dysfunction, though individual results can vary based on underlying health conditions and other factors.
Common Side Effects of Viagra
Like all prescription medications, Viagra may cause side effects in some patients. The most frequently reported side effects include headaches, facial flushing, indigestion, nasal congestion, and dizziness. These effects are typically mild to moderate and often diminish as the body adjusts to the medication. Visual disturbances, including temporary changes in colour vision or increased sensitivity to light, may occur but are generally uncommon.
Serious Side Effects and When to Seek Help
While rare, some patients may experience serious side effects that require immediate medical attention. These include prolonged erections lasting more than four hours (priapism), sudden vision or hearing loss, or severe drops in blood pressure. Chest pain or irregular heartbeat should be treated as medical emergencies. Patients taking nitrate medications for heart conditions should never use Viagra due to the risk of dangerous blood pressure drops.
Viagra vs Sildenafil: Branded vs Generic Options
EverydayMeds offers both branded Viagra and generic sildenafil tablets, allowing patients flexibility in their treatment choice. Both medications contain identical amounts of sildenafil citrate as the active ingredient and work in the same way. The primary difference lies in cost - generic sildenafil typically costs significantly less than branded Viagra while providing equivalent therapeutic effects. Patients can discuss their preference during the online consultation and choose the option that best meets their clinical needs and budget considerations.
Dosage Options and Personalisation
Viagra and sildenafil are available in 25mg, 50mg, and 100mg strengths. Most men start with the 50mg dose, which can be adjusted up to 100mg or down to 25mg based on effectiveness and tolerability. The maximum recommended frequency is once per 24-hour period. During the clinical assessment, UK-licensed prescribers evaluate each patient's medical history, current medications, and cardiovascular health to determine the most appropriate starting dose.
Maximising Treatment Success
Several factors can influence treatment outcomes with Viagra. Taking the medication on a relatively empty stomach may improve absorption and effectiveness. Alcohol consumption should be limited, as excessive drinking can reduce the medication's effectiveness and increase the risk of side effects. Patients with underlying conditions such as diabetes, high blood pressure, or cardiovascular disease may require closer monitoring and potentially different dosing strategies.
