Levitra

A generic drug is a drug that is exactly the same as the brand drugs, but can only be produced after the brand-name drug's patent has expired.

A generic drug is the same as a brand-name drug in:

• dosage
• safety
• strength
• quality
• the way it works
• the way it is taken
• the way it should be used

A drug company develops new drugs as brand-name drugs under patent protection. This in turn protects the investment in the drug's development by giving the drug company the sole right to manufacture and sell the brand-name drug while the patent is in effect.

Levitra (vardenafil) is an FDA-approved oral prescription medication for the treatment of erectile dysfunction (ED) in men. It belongs to a class of drugs called "PDE5 inhibitors."

It works by increasing blood flow to the penis to help improve erectile function. The active ingredient in Brand Levitra 20mg works specifically on the chain of events that occurs in the penis during arousal, when two large chambers in a man’s penis fill with blood.

The recommended dose of Levitra is 10 mg per day taken an hour before intercourse. If no side effects are experienced the dosage can be increased up to 20 mg. In case of adverse effects the dose is reduced to 5 mg daily. Do not take more than one tab of Levitra a day.

Levitra has not been studied in people with cardiovascular disease, so it is preferable to avoid Levitra if in patients who have a stroke or heart failure, or a heart attack in history and especially within last six month. Before to take Levitra inform your doctor if you have kidney or liver problems, a bleeding disorder, stomach ulcer, or an inherited retinal disorder such as retinitis pigmentosa, allergic reaction to this medicine or any other medicines, deformation of the penis such as angulation, cavernous fibrosis (Peyronie's disease), as well as in diseases that contribute to the development of priapism (sickle-cell anemia, multiple myeloma, leukemia, or leukemia).

Levitra's metabolism is inhibited by erythromycin, ketoconazole (Nizoral), itraconazole (Sporanox), indinavir (Crixivan) and ritonavir (Norvir). Levitra reduces the concentration of ritonavir and indinavir. In patients treated with nitrates Levitra may aggravate chest pain by increasing heart rate and lowering blood pressure. Levitra is able to exaggerate the blood pressure lowering effects of alpha-blocking drugs (terazosin or Hytrin). Levitra never should be administered in patients who are treated with organic nitrates.

Levitra is usually well tolerated and side effects if occur are transient. The most frequent side effects are: headache, flushing (hyperemia of the person); frequent; dizziness, diarrhea phenomenon, nausea, nasal congestion. More rare and uncommon adverse effects are photosensitivity of skin, hypertension, back pain, watery eyes, hypotension, myalgia, priapism.