Testosterone: For Transmen, Transmasculine, Non-Binary and Gender Expansive Folks It is important for you to strongly consider that this page is not medical advice. This page is meant to be informational only. Dr. Mosser does not prescribe testosterone. Starting hormones or changing your hormone regimen or dose may cause harm, and should only be done after a conversation with a medical doctor. Please seek guidance from your primary care physician or hormone specialist before you go on hormones or consider an adjustment to your hormone regimen.  Testosterone (T) hormone replacement therapy (HRT) is used to suppress assigned female at birth secondary sex characteristics in addition to providing ‘masculinizing’ effects such …