"i was given a diagnosis of adult add. i decided to try diethylpropion instead of traditional add/adhd medications.  i have been taking diethylpropion for about 6 years without incident.  my weight has remained the same, i have never had an overweight issue.  the only downside is that the medication only lasts about 9 to 10 hrs. although it&#039;s fine, my career requires 12 to 16 hr days, 3 to 4 days a week.  my doctor gives me a hard time about the medication, wants me to take another add medicine like adderall.  every six months i take a week or two off the medication with little withdrawal, meaning no to little physical effects, more psychological.  it really works for me. i do not smoke, drink alcohol, or take other medicines."