all drugs that work have side effects, but you offset the side effects by the disease, chemotherapy has a ton of side effects, but you compare it against cancer, but if we started prescribing chemotherapy for hiv or the flu, the side effects arn't worth it as it wouldn't help against the disease. PLUS and don't know enough to say it's this way here, there are drugs that have side effects, if the person doesn't have the disease the drug treats. Taking medicine when you don't need it isn't always a good thing.