"i started taking phentermine 30mg on 3/18/15.in the first month of using the medication, i dropped 13lbs (229lbs to 216lbs).the initial side effects i experienced included dry mouth, insomnia, and mild headaches. after the first couple of weeks, the only remaining side effect i experienced was dry mouth. this is actually a pretty beneficial side effect as it helps me drink more water. the next month, my doctor bumped me to the 37.5mg medication. during that month, i lost 12 more pounds (216lbs to 204lbs).so overall, i&#039;ve lost 25lbs in two months. i&#039;m elated! my first goal is to get to onederland (i.e.,finally be under 200lbs).it&#039;s nice to actually see some progress.i have hypothyroidism, so weight loss has always been difficult. this helps!"