Oral dosage, injection into the penis or insertion it inside the idea within the urethra in the idea for the penis will be the about three tactics of administering medicines for treatment solution of erectile dysfunction. In march 1998, FDA approved Viagra as the first pill to treat ED.After that vardenafil hydrochloride (Levitra) and tadalafil (Cialis) were also approved. erectile dysfunction More oral medicines are in the process of being tested for protection and usefulness. Viagra, Levitra, and Cialis belong to a group of drugs called phosphodiesterase (PDE) inhibitors.These drugs can help stimulate blood flow and relax muscles by releasing nitric oxide when they are taken an hour before sex.However, injections trigger automatic erections quicker than oral medicines. Depending on the patient, the doctor may recommend 25, 50 or 100 mg does as required. If the general practitioner feels that the suggested dose of 10 mg for Levitra or Cialis is inadequate then, it might be elevated to 20mg. Some patients that have other medical conditions which decrease the body’s ability to use the drug, may take a lower dose of 5 mg. prostate supplements Levitra is obtainable in a very reduce dose of 2.five mg.The use of these drugs is not recommended for above once per day. A sudden drop in blood pressure can result for people who get these medication with other nitrate-based medicines such as nitroglycerin for heart complications.Your physician really should know and modify your ED prescription if you’re taking any alpha blockers, that are used to handle prostate enlargement or substantial blood pressure level. Usage of a PDE inhibitor and an alpha-blocker at the same time (inside 4 hours) can cause a unexpected drop in blood pressure level. penis pump