Sildenafil: What It Is and How It Works

Sildenafil is a pill that helps men get and keep an erection when they’re sexually aroused. It belongs to the PDE5 inhibitor family, which means it blocks an enzyme that tightens blood vessels in the penis. By keeping those vessels relaxed, more blood can flow in, giving a firmer and longer-lasting erection.

The drug was first approved for erectile dysfunction (ED) in 1998 and is now one of the most prescribed treatments worldwide. It doesn’t work without sexual stimulation, so you won’t get an erection just by taking the pill. Think of it as a helper that makes the body’s natural response work better.

Correct Dosage and How to Take It

Most doctors start patients on a 50 mg tablet taken about an hour before intimacy. If that feels too strong or too weak, the dose can be lowered to 25 mg or increased to 100 mg. The maximum safe amount is 100 mg per day, and you should never take more than one dose in a 24‑hour period.

Take sildenafil with a glass of water. Food can slow down absorption, especially a big, fatty meal, so you might notice the pill works a little later if you eat heavily. If you need a quicker effect, you can try a low‑dose version on an empty stomach.

Don’t mix sildenafil with illegal recreational drugs or alcohol in excess. Both can lower blood pressure and raise the risk of side effects. If you have heart problems, talk to your doctor before trying the medication.

Side Effects, Interactions, and Safety Tips

Common side effects are mild and go away on their own: headache, flushing, upset stomach, nasal congestion, and mild vision changes. If you get a painful or prolonged erection that lasts more than four hours, seek medical help right away – that’s a rare emergency called priapism.

Sildenafil can interact with nitrates (often prescribed for chest pain), certain antibiotics, and some HIV medicines. Those combos can drop blood pressure dangerously low. Always give your pharmacist a full list of what you’re taking.

People with severe liver or kidney disease may need a lower dose. The same goes for men with low blood pressure or a history of stroke. If you’re unsure whether you fit into any of those categories, a quick chat with your healthcare provider will set things straight.

When you’re ready to buy sildenafil, look for licensed online pharmacies that require a prescription. Legit sites will show a pharmacist’s name, a physical address, and a secure https connection. Avoid websites that sell the drug without asking for a prescription – they often sell fake or sub‑potent pills.

Keep the medication out of reach of children and store it at room temperature, away from moisture. If you notice any discoloration or the pills crumble, throw them away and get a fresh batch.

In short, sildenafil works well for most men with erectile dysfunction when taken correctly and safely. By following dosage guidelines, watching for interactions, and buying from reputable sources, you can enjoy a reliable solution without unnecessary risks.