Ron....go to your regular doctor and let them know what is going on and why you may want to try supplements. Recommend getting blood work with a testosterone test. Being diabetic I get blood work done every 3 months and experience constant bouts of being tired. The doctor added a testosterone check on my next blood test and they found that my level was far below where is should be so He prescribed Jatenzo to bring it back to an acceptable level. Unfortunately as we age our levels suffer so as long as I continue to take it I am more active. I play golf weekly and chase around 3 grandkids like I was 30 years old. I also have lost almost 30 pounds which really helped.