Vardenafil: What It Does and How to Use It Safely

Vardenafil (often sold as Levitra) helps men with erectile dysfunction get and keep an erection. It can work in under an hour for many men and usually lasts about four to five hours. That speed makes it a good option when you need something reliable but not long-lasting like tadalafil.

How vardenafil works and common doses

Vardenafil relaxes blood vessels in the penis so blood can flow in during sexual arousal. Typical doses are 5 mg, 10 mg, and 20 mg. Doctors usually start at 10 mg taken about 25–60 minutes before sex. If you’re older, have liver issues, or take certain medicines, doctors may start lower at 5 mg.

Do not take more than one dose a day. If your erection lasts longer than four hours, get emergency help—this is a rare but serious condition called priapism.

Side effects, risks, and drug interactions

Common side effects are headache, flushing, stuffy nose, and dizziness. Some people notice mild vision changes. Serious risks come from mixing vardenafil with nitrates (used for chest pain). That combo can drop your blood pressure dangerously. Avoid nitrates and tell every doctor you’re using vardenafil.

Certain drugs raise vardenafil levels: strong CYP3A4 inhibitors like ritonavir, ketoconazole, and some macrolide antibiotics. Grapefruit can also increase blood levels. Your doctor may cut your dose or choose a different medicine if you’re on those drugs.

If you have recent heart attack, stroke, unstable angina, or very low blood pressure, your doctor will likely say no. Talk openly about heart disease, liver or kidney problems, and any other meds you take.

Want straightforward tips for buying vardenafil online? Stick with licensed pharmacies that require a prescription. Look for clear contact details, a licensed pharmacist, secure checkout (HTTPS), and real customer support. Be wary of sites that sell prescription meds without asking for a prescription or offer huge discounts that seem too good to be true—those are often counterfeit drugs.

Check for pharmacy credentials or membership in recognized pharmacy groups. If a site ships from overseas, read shipping times and return policies. Keep packaging and leaflet info when your order arrives—fake pills often have wrong markings or poor packaging quality.

Finally, chat with your healthcare provider before trying vardenafil. They’ll pick the right dose, check for dangerous interactions, and help you avoid fake products. Used correctly, vardenafil restores confidence and performance for many men—used carelessly, it can cause harm. Ask questions, be honest about your health, and buy from credible sources.