U were precribed what they call a cortico steroid which is like ur methylprednisolone or prednisone's It is for inflammation and it is not gonna make u gain muscle nor strength. U may gain water weight because they can make u retain more water than normals. Howver a 25mg tablet is rare because it comes in strengths of 1,2.5,5,10,20,50. Cortico steroids and Anabolic Steroids are two totally different things and as i have told many patients we have a steroid for u to pick up and they freak out because all of the media attn in the past couple years. As far as "AS" in US pharmacy's we only carry Testosterone Enanthat and Testosterone Propionate which are injectables. But anyways if it was for pain in ur neck or something just drink lots of water and try to take them with food. But as far as them being a steroid thats gonna make u faster stronger and meaner dont worry about it ur fine.