Other side effects from Adipex, similar to
Fen-Phen side effects, may include tachycardia or abnormal heart beat, high blood pressure, dizziness, insomnia, and psychotic episodes.

Adipex, manufactured by GATE Pharmaceuticals to treat obesity, can also be habit-forming and should be used only by the person it was prescribed for; it can make you physically and psychologically dependant and cases of abuse have been reported.
Phentermine, the generic name for Adipex, is the most commonly prescribed appetite suppressant, mainly because it costs less than other FDA-approved diet pills. The FDA recommends short term use of Phentermine—meaning less than 12 weeks—along with a diet and exercise plan.
If you have the following conditions, you may not be able to take Adipex:
- heart disease or high blood pressure;
- arteriosclerosis (hardening of the arteries);
- an overactive thyroid;
- glaucoma;
- if you are in an agitated state; or
- if you have a history of drug or alcohol abuse.
- problems with your thyroid
- an anxiety disorder,
- epilepsy or another seizure disorder,
- diabetes
You should also consult a doctor before taking Adipex if you are pregnant. As well, this medication should not be given to someone younger than 16 years old without a doctor's consent.
Primary Pulmonary Hypertension (PPH)
Primary Pulmonary Hypertension ("PPH") is a serious and potentially life threatening cardiovascular condition. In a study published in the New England Journal of Medicine in 1996, it found that the use of Fen Phen for three months or longer can increase in the risk of developing PPH by a factor of 23. PPH causes high blood pressure in the lungs that can create a feeling of breathlessness with minimal exertion, fatigue, dizzy spells, fainting and chest pain.
PPH Symptoms
Initially, the symptoms of PPH can include:
- Shortness of breath
- Chest pain
- Weakness
- Fatigue
- Fainting
The symptoms of PPH can progress to include:
- Bluish lips and skin
- Ankle and lower leg swelling
- Increased chest pain
- Death