Essential Sildenafil Information at Your Fingertips
How Does Sildenafil Work?
Sildenafil belongs to a class of medicines called PDE5 inhibitors, which work by increasing blood flow to the penis when sexually aroused. It's important to understand that sildenafil doesn't cause automatic erections - sexual stimulation is still required for the medication to be effective. The treatment blocks the phosphodiesterase type 5 enzyme, allowing blood vessels to relax and improve circulation during arousal.
Many patients ask about onset time and duration. Sildenafil typically begins working within 30-60 minutes of taking the tablet, with effects potentially lasting 4-6 hours. This doesn't mean an erection will last this long, but rather that the medication remains active in your system during this timeframe.
What Dosages Are Available?
Sildenafil is available in three strengths: 25mg, 50mg, and 100mg tablets. Most patients start with the 50mg dose, which can then be adjusted based on effectiveness and how well the medication is tolerated. Your prescriber may recommend a lower 25mg dose if you experience side effects, or increase to 100mg if the standard dose isn't sufficiently effective.
The maximum dosage is one tablet per 24-hour period, regardless of strength. Taking sildenafil 30-60 minutes before planned sexual activity typically provides optimal results. EverydayMeds offers both generic sildenafil and branded Viagra in all three strengths, allowing patients to choose their preferred option during checkout.
Who Can Take Sildenafil?
Sildenafil is suitable for adult men aged 18 and over who have erectile dysfunction. However, it's not appropriate for everyone. The medication requires a prescription following clinical assessment by a UK-licensed prescriber, who will evaluate your medical history, current medications, and cardiovascular health to ensure safe treatment.
Certain medical conditions may make sildenafil unsuitable, including severe heart disease, recent heart attack or stroke (within six months), severe liver problems, very low blood pressure, or hereditary retinal disorders. Additionally, men taking nitrate medications for chest pain cannot use sildenafil due to dangerous drug interactions.
What Are the Common Side Effects?
The most frequently reported side effect is headache, experienced by more than one in ten patients. Other common side effects include facial flushing, indigestion, nasal congestion, dizziness, mild visual disturbances (such as a blue tinge to vision), and nausea. These effects are typically mild and temporary, often becoming less noticeable with continued use.
Serious side effects are rare but require immediate medical attention. These include priapism (a painful erection lasting more than four hours), sudden vision or hearing loss, chest pain during sexual activity, or signs of severe allergic reaction. If you experience any concerning symptoms, seek medical help promptly.
Important Drug Interactions
Some medications cannot be safely combined with sildenafil. Never take sildenafil if you're using nitrate medications like glyceryl trinitrate (GTN spray) or isosorbide, as this combination can cause dangerous drops in blood pressure. Recreational drugs containing nitrates (often called "poppers") also pose serious risks when combined with sildenafil.
Other medications require careful monitoring when used alongside sildenafil, including alpha-blockers for prostate problems, certain blood pressure medications, HIV treatments, and some antibiotics or antifungals. Always inform your prescriber about all medications you're taking, including over-the-counter medicines and supplements.
Sildenafil vs Viagra: Understanding Your Options
Generic sildenafil and branded Viagra contain the same active ingredient (sildenafil citrate) and have identical effectiveness and safety profiles. The main difference is cost - generic sildenafil typically costs less whilst providing the same therapeutic benefits. Some patients prefer branded Viagra for personal reasons, whilst others choose generic sildenafil for value.
Both options require the same prescription process and clinical assessment. EverydayMeds provides the flexibility to choose between generic sildenafil and branded Viagra during your order, ensuring you receive your preferred treatment option.
