Phentermine is available as tablets, capsules or orally disintegrating tablets (ODTs). The main differences between tablets and capsules are: (a) the manufacturer and (b) the inactive ingredients. Some people prefer tablets because tablets can be split in half, while capsules must be taken whole. Others prefer capsules because capsules have a higher absorption rate than tablets, and some people find them easier to swallow.
→ To read more about phentermine weight loss pills and their ingredients.