I have seen quite a bit of redditors discredit and slam the use of prescription weight loss drugs like phentermine, it has me wondering how a larger portion of the health/fitness/weight maintenance community feels about it outside of the ever-so-angsty reddit community.
In my experience, I was very fit and in shape, even after having my third child, then I got my tubes tied and the dink of a doctor screwed it up and I ended up with Post Tubal Ligation Syndrome, which caused rapid onset weight gain that I struggled to fight off for around a year to no avail. I was exercising rigorously 6 out of 7 days, drinking nothing but 3 litres of water and 3 cups of plain black coffee everyday, meeting my caloric and nutritional needs and eating clean, but the weight just piled on.
Once I finally got new insurance and switched doctors, my new doctor diagnosed me with PTLS and said my previous doctor hadn't diagnosed me because it is a complication that one can only get if the doctor screws up the procedure by cutting off the blood supply to the ovaries, even if only for a few seconds, which then throws your hormones completely for a loop and causes major complications such as menopausal symptoms, weight gain, fatigue, etc.
After about 3 or 4 months of being seen by this new doctor and having my condition properly treated and all the kinks worked out, they put me on phentermine to help me lose the weight because it still just was not coming off. (Something about the PTLS having caused me to have a much lower resting and active heart rate, so my body is not burning nearly as many calories as it should at my height/weight/activity level.)
Side note: I also have cPTSD from being beaten, raped, and locked in a room for about 6 months about 7 years ago and I still have severe panic/anxiety issues from that even after years of therapy and working on my coping methods, but as i have gotten older, it seems to just escalate and get worse and worse each year with the anxiety and depression.
So my doctor puts me on phentermine 37.5s and I take them as prescribed and continue my diet/exercise routine as is, using my HRM wearable chest strap, I monitored my calorie burn actively while I worked out. My heart rate could easily climb up to the 175-190 range (I'm 26 so this isn't wildly dangerous for me, as once it hits 190 I usually lower my intensity for a bit.) I was burning 3x what I was burning before the phentermine was added and the weight started melting off, almost literally. I have been on it 3 months and lost 31 pounds now, with about 20lbs more to lose. My doctor said it is most definitely fat, as I wasn't really retaining much water weight before hand because 3Ls water a day was my normal for several years even before I was into focusing on my fitness and i don't drink soda/juice/tea, just water and plain black coffee.
I am really seeing more muscle definition and can really see how much I have lost at this point, which is encouraging.
My doctor is also wanting to experiment with keeping me on the phentermine for a while even after I lose the weight, because i have also noticed my anxiety and depression have lessened substantially where literally every other prescription anti anxiety/anti depressant available on the market actually made it worse, it has given me clean, focused energy, with no rise or fall and no jitters, no paranoia or irritability as others have described being on phentermine. It has improved my physical and mental health 10 fold and my doctor said it very well could be that I had undiagnosed ADHD that I had managed to cope with or mask in various ways for years and it made my anxiety and depression worse because it made it almost impossible to compartmentalize and to focus on one stressor in life at a time, my brain was constantly jumping from issue to issue steadily through out the day and couldn't stop for anything.
So I guess I'm wondering why other people spit on this medication so much, especially since im definitely not the only success story out there, I have seen tons of people online say they all had huge success losing weight on phentermine. I'd think as long as you use your time on it to develop healthy and easy to sustain habits, it would be very effective at keeping your weight off, since it only takes 30 days to develop a habit.