what is the effect of phentermine on my testosterone level?

Phentermine, a medication used for weight loss, doesn't directly affect testosterone levels. However, weight loss itself can influence testosterone levels. Obesity is linked with lower testosterone levels in men. So, by assisting with weight loss, phentermine could potentially have an indirect effect on raising testosterone levels in obese men.

Phentermine is an amphetamine analogue that suppresses appetite by stimulating norepinephrine and dopamine release in the hypothalamus. It has been proposed that amphetamines may increase sexual arousal by producing elevations in testosterone levels as a result of their dopamine-modulating effects. So this is good news for weight loss men!