hapakun saidMuscle boys and their admirers,
I have heard some medications like pain killers and anti-depressants can inhibit muscle growth? Can anyone confirm this or name some medications?
Narcotics, which are pain killers, will lower testosterone levels. This is a significant problem in individuals on long term treatment with methadone. The low testosterone can cause erectile dysfunction. It is reasonable to assume that the low testosterone level would also impair muscle growth.
Many psychiatric drugs will raise the levels of the hormone prolactin. High prolactin levels will lower testosterone levels in males. In females, prolactin causes breast milk to be produced.
Besides raising cortisol levels as previously mentioned, alcohol will also lower testosterone levels.
Probably the drug class that produces the most muscle damage (myositis) are the statins which are used to lower cholesterol. The most popular statins are Lipitor, Zocar and Crestor. I'm aware of many individuals that had to stop statins because of severe muscle pains. If niacin is added to the statin, myosiis becomes more common.
An excessive dose of thyroid hormone can cause a profound muscle weakness.
All the cortisocsteroids which are used for inflammation can cause muscle weakness. The common one are prednisone, Medrol, Decadron, hydocortisone.
There are other, obviously toxic drugs, such as chemotherapy for cancer which can cause muscle weakness.