I have been on phentermine for a little over a month because I had problems shedding post-partum weight, but then found out that I also have hypothyroidism
and was prescribed with Levothyroxine (by the same doctor
and kept me on
phentermine). I was overwhelmed when my pharmacy printed out a long *WARNING OF DRUG INTERACTION* sheet telling me of all the possible side effects etc... I have gone from taking a vitamin a day to 3 prescription drugs, that have possible hazardous interactions.