"yes this drug has really bad side effects of severe headache . i suffer from migraine and i didn&#039;t know how much more of this side effect i could handle, but for me losing weight was more important than anything. 1st month everyday severe headaches but after that things got better after about 6 weeks i felt normal. its been 6.5 months and i&#039;ve lost 40lbs. i eat extremely healthy and exercise everyday. no sugar no carbs. its not a miracle drug you have to also change yourself. i would do it all over again. definitely recommend it."