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Recent Clinical Trials and Viagra

Effectiveness and safety of drugs are often tested through clinical trials. Trials are also used to test new applications of drugs. There have been several recent clinical trials associated with Viagra which focus on these issues. Trials are conducted following strict procedures and standards that have been approved by the federal government and other agencies. Even after a drug receives FDA approval, research continues to identify and address additional risks as well as get approval for other uses of the drug.

Testing for Safety

The potential side effects of Viagra continue to be of concern. Testing continues to improve the safeness of the medication. The most common side effects documented in clinical trials include impaired vision, nasal congestion, and headache. Vision disturbances have ranged from mild blurriness to complete loss of peripheral vision.

Additional, but rare, side effects include stroke, heart attack, and hearing loss. Results from these clinical trials have lead to clearer warnings in the medication labeling process. Consumers are better informed of all possible risks related to this medication.

Interactions with other medications are another reason for the clinical trials. Researchers can identify risks associated with taking the pill in concert with other over-the-counter and prescription medications. For example, it has been documented that consumers with HIV who are prescribed protease inhibitors may experience complications when taking Viagra. Because severity of side effects may be amplified, it is recommended that these patients use no more than one 25mg dose within a 48 hour period.

Current Applications

Viagra is used to treat several conditions. Its primary purpose is the treatment of erectile dysfunction. However, secondary applications include treatment for pulmonary hypertension, and treatment for altitude sickness. It has been effectively prescribed for both men and women to treat various disorders.

There are myriad causes of erectile dysfunction in men including stress, medical conditions, and effects from other medications such as antidepressants. Regardless of the cause, this drug is proven to help men sustain erections during intercourse. There have been clinical trials to test the efficacy of the drug on men who suffer erectile dysfunction as a result of prostate cancer.

This tablet is available in 25mg, 50mg, and 100mg doses. When used for erectile dysfunction, it is to be taken before sexual activity, typically 30 minutes to one hour in advance. It can be taken up to 4 hours prior to sexual intercourse, but its effectiveness may be reduced. The manufacturer may conduct trials to test alternative ways to administer the drug other than in pill form.

Discover how taking Viagra is an effective remedy for erectile dysfunction caused by stress when used as instructed and how its use impacts stress in men who take the drug.