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Levitra is a drug that helps erectile dysfunction by blocking the degradative action of phosphodiesterase in the smooth muscle cells that uniformly line the blood vessels of the corpus cavernosum of the penis. This class of drugs that works by this method of action was the first efficacious oral treatment for erectile dysfunction on the market. These same cells are all present in the arterial wall of smooth muscle within the lung cavities so they’ve also een looking into for the treatment of pulmonary hypertension.
Levitra is marketed by the company, Bayer Pharmaceuticals. It is similar, highly similar, to Viagra and Cialis. There are only slight chemical differences in the constitution of Levitra versus the former two like the position of a nitrogen atom and a few methyl groups and ethyl groups. Common side effects are similar to the other two drugs in that they can cause pain in the abdomen, back, and eye, sensitivity to light, blurred vision, hypotension, palpitation, rashes, itches, and priapism too. A heart attack is very rare, but it can happen. buy cialis online
The dosage amounts are in the form of 2.5 mg, 5 mg, 10 mg, and 20 mg doses. They come in round orange tablets, and the normal starting dose is roughly 10 mg. It should be taken a couple of hours prior to sexual activity with a maximum dosage frequency once per day. In some places, only one kind of dosage may be available. Life-threatneing low blood pressure can occur if the the drug is taken in conjunction with nitrate medications, which is a contraindication for most types of erectile dysfunction medication that work this way. There are common adverse drug reactions, with the most common being nausea and undefined pain throughout the body. This drug merits some distinction apart from Viagra because it has less of an effective window of action.cheap cialis