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Side Effects of Testosterone Gel

Common Side Effects of Testosterone Gel

Testosterone gel has been thoroughly studied in clinical trials. In these studies, the side effects that occurred in a group of people taking testosterone gel were documented and compared to those that occurred in a similar group of people taking a placebo (a gel with no active ingredients).
As a result, it is possible to see what side effects occurred, how often they appeared, and how they compared to the group taking the placebo.
In these studies, the most common testosterone gel side effect included skin reactions at the application site. This occurred in up to 16.1 percent of people. Other common reactions (all occurring in up to 2 percent of people) included:
  • High blood pressure
  • Abnormal dreams 
  • Breast development
  • Headaches
  • Hot flashes
  • Insomnia
  • Watery eyes
  • Mood swings
  • Changes in the sense of smell
  • Taste changes
  • Spontaneous penile erections
  • An enlarged prostate (also known as benign prostatic hyperplasia, or BPH)
  • Abnormal lab tests (various different tests, such as cholesterol or blood sugar tests)
  • Acne
  • Urinary symptoms, such as difficulty urinating or frequent urination.
(Click AndroGel Side Effects or Testim Side Effects for more information about the specific frequency of side effects for each individual product.)

Final Thoughts

You may experience some or none of the testosterone gel side effects listed in this article. Unfortunately, there is no way for your healthcare provider to know beforehand if you will have problems with a medicine that you have never tried. Therefore, make sure to let your healthcare provider know if you develop any negative reactions while taking testosterone gel.
Also, let your healthcare provider know if you develop something that "just does not seem right." While it may not be a side effect of testosterone gel, your healthcare provider will be able to diagnose and treat the problem.
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