What Could Cause Severe Stomach Pain And Constipation While Taking Phentermine For Weight Loss?

Posted on Mon, 30 Jul 2018

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Mon, 30 Jul 2018 Answered on

Fri, 2 Dec 2022 Last reviewed on

Question : Hello Doctor
I am currently taking Phentermine for weight loss and am experiencing a lot of stomach pain and constipation. I am assuming that constipation is a side effect of this drug. My concern is that I have taken Ducolax twice with positive results but am not sure how long you can take laxatives. I have been drinking close to 96 oz of water per day and do not have hardly any appetite. So far after starting this drug 3 weeks ago, I have only lost 2 lbs. MY questions to you are:
1. How long can laxatives be taken to avoid the associated stomach pain while taking this drug or will it eventually subside?
2. What would you suggest as far as eating goes? Even though I have no appetite now, I know I have to eat so I have been sticking to meats and vegetables ( just not in high quantity).
Thank you and regards XXXXXXX

Answered by Dr. Ramesh Kumar (3 hours later)

Brief Answer:
Add yohimbine extracts also acts on brown fat.

Detailed Answer:

Hello,

1) You can take Dulcolax for months. However, better laxatives are now available with minor side effects and no habit forming tendency like lactulose. You could take it 5 to 10 ml once daily at night.
2) As you have no appetite I would suggest you to keep your protein intake high so that your body loses fat and not muscles.

I would suggest you to take whey protein casein protein and veg protein products. A scoop will provide you with high quality 30 gram proteins and would keep your muscles and immunity intact.

Thanks!

Regards

Above answer was peer-reviewed by : Dr. Prasad