Can i use garcinia cambogia if i use thyroid and cholesterol medicine?

Safe, may not help: Garcinia Camboigia is generally safe & should be OK with those meds ,but many research studies show it has little if any benefit- see http://authoritynutrition.com/garcinia-cambogia-extract/ & the link there for a"proven way to lose weight." There is no substitute for changing your diet to lose weight, though this supplement is more likely to be helpful than Garcinia: http://tinyurl.com/q46f4l5