What Is Vardenafil (Levitra)?
Vardenafil is an oral phosphodiesterase type 5 (PDE5) inhibitor used to treat erectile dysfunction (ED) in adult men. Vardenafil (Levitra) refers to the active medicine and its well-known brand name, while generic vardenafil may be available depending on the country. Original US Levitra tablets were discontinued for commercial reasons and not because of safety or effectiveness concerns.
Vardenafil helps improve blood flow to the penis during sexual stimulation, supporting the natural erectile response. It is not an aphrodisiac and does not increase testosterone, sexual desire, or fertility. Sexual stimulation is required for vardenafil to produce its intended effect.
Vardenafil Uses
Vardenafil is used to treat erectile dysfunction (ED), also known as impotence, in adult men. ED can be associated with conditions such as diabetes, cardiovascular disease, certain medicines, stress, or anxiety.
Vardenafil helps support the natural erectile response by improving blood flow to the penis during sexual stimulation, but it does not cure the underlying cause of ED or protect against sexually transmitted infections (STIs).
Benefits of Vardenafil
Vardenafil can help eligible adult men achieve and maintain an erection during sexual stimulation. It is taken as needed and may provide an effective treatment window of around four to five hours, but this does not mean an erection should last that long.
The appropriate choice depends on timing, individual response, health conditions, and potential drug interactions. Do not take more than the prescribed dose or repeat a dose on the same day without medical direction.
How Does Vardenafil Work?
Vardenafil works by supporting the body's natural erection process during sexual stimulation. Sexual stimulation increases nitric oxide and cGMP, which relaxes smooth muscle and allows more blood to flow into the penis. Vardenafil blocks the PDE5 enzyme that breaks down cGMP, helping maintain the signals needed for an erection.
Vardenafil does not create an automatic or continuous erection. Sexual stimulation is required for the medicine to produce its intended effect.
Vardenafil Dosage and How to Take It
The usual starting vardenafil dosage is 10 mg taken as needed approximately 60 minutes before sexual activity. A prescriber may reduce it to 5 mg or increase it to 20 mg. Do not take more than one dose in 24 hours.
Tablets may be taken with or without food, although a high-fat meal can delay absorption. Orally disintegrating vardenafil has different instructions and is not interchangeable with regular tablets.
Older adults and people with liver problems or interacting medicines may need a lower dose. Sildenafil, tadalafil and vardenafil milligrams are not equivalent. Never combine ED medicines unless directed.
Vardenafil Side Effects
Possible vardenafil side effects include headache, facial flushing or warmth, a stuffy or runny nose, indigestion or heartburn, dizziness, nausea, back pain, and temporary visual changes. Most side effects are mild, but persistent or bothersome symptoms should be discussed with a healthcare professional.
Seek urgent medical attention for chest pain, fainting, a severe allergic reaction, sudden vision or hearing loss, or an erection lasting more than four hours. Tell emergency professionals when you last took vardenafil, and do not use nitrate medicines to self-treat chest pain after taking vardenafil because the combination can cause a dangerous drop in blood pressure.
Vardenafil Warnings and Drug Interactions
Never take vardenafil with nitrates, recreational “poppers” or guanylate cyclase stimulators such as riociguat. These combinations can dangerously lower blood pressure. Vardenafil can prolong the heart’s QT interval. It is generally avoided with congenital long-QT syndrome and Class IA or III antiarrhythmics, including quinidine, procainamide, amiodarone and sotalol. CYP3A4 inhibitors such as ritonavir, ketoconazole, itraconazole and clarithromycin may require strict dose limits or avoidance. Alpha-blockers, blood-pressure medicines and substantial alcohol can increase dizziness or low blood pressure. Avoid grapefruit unless approved by the prescriber.
Who Should Avoid Taking Vardenafil?
Vardenafil should not be taken by people with a known allergy to vardenafil or its ingredients, or by those using nitrate medicines, recreational “poppers,” or guanylate cyclase stimulators such as riociguat, because these combinations can cause a dangerous drop in blood pressure. It should also be avoided in people with congenital long-QT syndrome and those taking certain antiarrhythmic medicines that can further prolong the QT interval.
Vardenafil may also be unsuitable for people with a recent heart attack or stroke, unstable or severe heart disease, very low or uncontrolled blood pressure, severe liver impairment, or those receiving dialysis. People with a previous history of non-arteritic anterior ischemic optic neuropathy (NAION) or sudden vision loss attributed to NAION should also avoid vardenafil. A healthcare professional should review your cardiovascular history, liver and kidney function, and current medicines before treatment.
Storage Instructions
Store vardenafil tablets in their original packaging at the room temperature specified on the product label. Protect the medicine from excessive heat, moisture, and direct light, and keep it out of reach of children. Do not use expired or damaged tablets, and ask a pharmacist or follow local medication-disposal guidance for the safe disposal of unused or expired vardenafil.
Vardenafil vs Sildenafil: What Is the Difference?
Both vardenafil and sildenafil are on-demand PDE5 inhibitors used to treat erectile dysfunction. Their usual onset and duration are broadly similar, although individual responses vary. Sildenafil is commonly started at 50 mg, while vardenafil is commonly started at 10 mg, but their milligram strengths are not equivalent. Neither medicine is universally stronger.
Vardenafil vs Tadalafil: Which Is Better?
Vardenafil is generally taken as needed and may provide an effective treatment window of around four to five hours. Tadalafil can remain effective for up to 36 hours and also has an approved daily dosing option. The better choice depends on preferred timing, health conditions, potential interactions, side effects, and individual response.
Is Levitra the Same as Vardenafil?
Yes. Levitra contains vardenafil as its active ingredient. Approved generic vardenafil products contain the same active ingredient, although manufacturers, tablet appearance, and inactive ingredients may differ between products.