Symptoms of phentermine overdose may include hyperventilation, agitation, abnormal heartbeat, chest pain, hallucinations, seizures and unconsciousness.
Anyone who suspects that a patient has overdosed on phentermine should immediately call poison control or a hospital emergency room. In the United States, the National Poison Hotline can be reached at 1-800-222-1222. In Canada, residents can contact the poison control center in their particular province.
Appetite suppressants, including phentermine, are not intended to be substitutes for diet and exercise. Patients who want significant and lasting results from phentermine should work with their doctor to develop and follow a low calorie diet and a regular exercise program.
It is illegal to share prescription drugs with other people. Only patients to whom phentermine is prescribed should take the medication.
Doctors are advised to monitor the progress of patients who are taking phentermine and to perform periodic laboratory and medical tests to monitor check for side effects. These may include blood pressure monitoring, heart monitoring and tests of kidney and liver function.
Phentermine should be stored at room temperature in a tightly closed container. The pills should be kept out of the reach of children and pets. When the product is expired or no longer needed, the pills should be properly disposed of. A pharmacist or local waste disposal company can provide information on how to discard medications properly.