How long does it take for duromine 15mg to work?

See below: if you're asking how long does it take it to lose weight. That's a total different question. 15 mg of phentermine works very well for weight loss. As long as you're eating a proper diet. If you take the medication and eat improperly it will not work and what weight you lose willjust came back as soon as you stop the medication. Please be followed by your physician. Most important.