Bontril (phendimetrazine) is an appetite suppressant that works like an amphetamine by stimulating the central nervous system. According to the U.S. Drug Enforcement Administration (DEA), Bontril and other anorectic drugs are manufactured to replace amphetamines as appetite suppressants. This drug is prescribed for short-term use along with diet and exercise for the treatment of obesity. Like other medicines, Bontril has some common and severe side effects.
Common Side Effects
Since Bontril works on the central nervous system, some of the common side effects include feeling over stimulated, restless, or anxious as well as insomnia, flushing, tremors, sweating, or dizziness. The drug causes heart palpitations, increased heart rate and high blood pressure in the cardiovascular system. Dryness of the mouth, nausea, diarrhea, constipation and stomach pain are common side effects for the gastrointestinal system. Other side effects include changes in urinary frequency, difficult or painful urination and changes in sex drive.
Severe Side Effects
In rare cases, Bontril causes severe allergic reactions including rash, hives, itching, difficulty breathing, tightness in the chest, swelling of the lips, tongue or face, or a closed throat. An irregular heartbeat or very high blood pressure with a severe headache or blurry vision is another serious side effect. Bontril can induce a psychotic state in some people with hallucinations, abnormal behavior, or confusion.
Dependence
Regular use of Bontril can cause physical and psychological dependence for some people. Withdrawal effects can occur if the drug is suddenly discontinued after several weeks of use. Seek medical advice to avoid withdrawal symptoms.
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