"the progress with this medication was really quick at first, 5-7lbs a week after just the first week. the headaches were manageable until i got to three a day and then the headaches and vertigo it caused almost made me stop all together. i was at a stand still with just two pills a day for longer than i should have been. finally i read a correlation between the drug metformin interacting with contrave, causing headaches. i have pcos, not diabetes, so i could stop taking them. a week later i was able to go up to three with no issue and have now been up to 4, for more than a month with no issue. the only problem i came across since is that removing the metformin, my progress has slowed to 1-2lbs a week, no matter diet or exercise. 35lbs-3mos"