If psychological causes are suspected, a doctor may recommend psychotherapy. Vardenafil comes in tablets that range from 2.
Your doctor can help you figure out what dose is right for you. The recommended starting dose of vardenafil for most people is 10 mg taken about an hour before sexual activity. The dose can be increased to a maximum of 20 mg or decreased based on its effectiveness and the presence of side effects. About 40 percent of people experience side effects that are usually mild when taking PDE5 inhibitors.
The most common side effects of vardenafil include:. Rarely, vardenafil and other PDE5 inhibitors can cause priapism , which is a painful erection lasting more than 6 hours. If your erection lasts more than 4 hours , you should seek immediate medical attention to avoid permanent damage to your penis. Other potential side effects of vardenafil include:.
Vardenafil can potentially interact with a number of medications, including:. Taking vardenafil with alcohol may increase your risk for certain side effects. Generic vardenafil is equally as safe and effective as Levitra or Staxyn. It may have minor differences such as flavor or color variation, but the manufacturer needs to apply for FDA approval showing that it meets the same standard as the brand-name drug.
Alternatives to vardenafil include:. Place the tablet on your tongue and allow it to melt. Take the tablet without liquid.
Do not break, crush, or chew it. Use only the brand of this medicine that your doctor prescribed. Different brands may not work the same way. The dose of this medicine will be different for different patients.
Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine.
If your dose is different, do not change it unless your doctor tells you to do so. The amount of medicine that you take depends on the strength of the medicine. Erectile dysfunction is when a man is unable to get or sustain an erection. It usually happens because the arteries that carry the blood to the penis are too narrow. Its action is similar to that of sildenafil, or Viagra , but Viagra lasts between 2 and 4 hours, while Levitra lasts 4 hours.
The blood vessels that supply the penis with blood expand, or dilate, and the vessels that take blood away from the penis contract. The two large chambers in the penis, known as the corpus cavernosa, fill with blood.
Vardenafil belongs to a class of drugs called phosphodiesterase type-5 PDE5 inhibitors. When a male is sexually aroused, nitric oxide is released into his penis, and this triggers a chain of reactions. The chemical reaction causes the vessels that supply the penis to dilate, while those removing blood from the penis contract.
When cGMP is destroyed, the blood vessels return to their normal size, effectively ending the erection. In this way, it allows cGMP to work for longer. As a result, it helps prolong an erection.
Vardenafil is available in tablets of 2. The first dose is normally 10 mg. A mg dose of vardenafil is approximately equivalent to 50 mg of sildenafil, or Viagra.
This is because the chemical composition of vardenafil is different from that of sildenafil. Vardenafil is taken 25 to 60 minutes before sex. The pharmacokinetic, pharmacodynamic and tolerability profiles support vardenafil hydrochloride as a strong candidate for further testing as a treatment for erectile dysfunction. Abstract Objectives: To evaluate the effect of two doses of vardenafil hydrochloride on penile rigidity and tumescence while determining the pharmacokinetics.
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