If you are experiencing erectile dysfunction, you may find that your physician recommends you use a drug called Cialis. This drug was approved by the FDA in the fall of 2003 and is marketed by a group called GLaxoSmithKline. The discovery of the drug came about when some scientists were testing a drug called sildenafil. They had found that sildenafil can inhibit an enzyme called PDE5. They also found that this drug would cause penile erection. Initially, their purpose for testing sildenafil had not been for this use, but they quickly recognized that it could be used for this purpose. In 1995 after they had received a patent on the drug, clinical trials were started which would test it for other uses. The drug found in Cialis is related but is called tadalafil. Cialis does have an added advantage over other drugs similar to it that are on the market today, in that it can last longer.
Commercials for the drug claim that it works for as many as 36 hours. For many men who want to experience romance and sexual fulfillment once again in their lives, this drug has important implications. There are several good web sites that can give you information about the drug and even provide opportunities for purchasing it. Obviously before trying any drug like this you should consult your physician. His or her expertise can help you determine whether this drug is right for you. When you are ready to buy Cialis, beware of drugs that are generic versions of it and could be potentially harmful, dangerous or simply ineffective. The drug is a great gift to many people, but it’s important to know the side effects and to consult with your doctor before you make any decisions.