Drugs can have different uses. Just beause something is authorized doesn't mean it's authorized for everything.
Reminds me of a common misconception that insurance covers Viagra. It can. If used to treat heart conditions, which was the original intent. If your doctor prescribes for that then insurance will cover it. If you want to get for erectile dysfunction then insurance won't cover it.
Anecdotes is not data. Some people got covid, drank some coca cola, and felt better. Doesn't mean it was from the coca cola. Some people got covid, drank coffee, and died. Doesn't mean coffee killed them.