Obviously in the bodybuilding community there are plenty of fat loss drugs. I don’t advise taking anything unless you do proper research and know the risks. Here are some of the most popular things bodybuilders use today:
T3 - thyroid hormone, just as likely to burn muscle as fat
ECA stack - ephedrine, caffeine, aspirin -relatively safe in proper dosages, but a definite stimulant
Clenbuterol- bad for heart, good for weight loss
DNP- possibly the strongest fat burner in existence. If you use too much you could burn alive from the inside out and die.
Yohimbie HCL- perfectly legal, helps release stubborn fat
Helios - injectable for targeted weight loss, it’s just clenbuterol mixed with yohimbine
The only one I have personal experience with is Helios. In addition it had l-carnatine. I used it for 2 weeks to reveal abs. It gave me shakey hands / tremors.