According to experts at Drugs.com, phentermine, also known as Adipex-P, Teramine and Zantryl, is a stimulant used in the treatment of obesity. It aids in weight loss by suppressing your appetite but should be used in combination with a healthy diet and exercise routine. Available by prescription only, phentermine is accompanied by a variety of side effects, which you should consider before taking.
Common Side Effects
According to the experts at eMedTV.com, the most common side effects associated with phentermine include feelings of euphoria, dry mouth, insomnia, hyperactivity, an unpleasant taste in the mouth, constipation, dizziness, dysphoria (unusual unpleasant feelings), restlessness and diarrhea.
Serious Side Effects
The following are a list of side effects you should report to your doctor immediately if you begin to experience them. They include but are not limited to high blood pressure and a rapid heart. Additionally, you may experience symptoms of pulmonary hypertension, which may be life-threatening. These signs include difficulty breathing, extreme fatigue or a feeling of weakness, swelling of your ankles, chest pain, feeling dizzy or fainting, and your lips or skin turning blue. More serious side effects that need to be promptly reported include strange or aggressive behavior, hallucinations, agitation or a desire to take more phentermine than is prescribed (a sign of dependency).
Sexual Side Effects
The experts at eMedTV.com state that sexual side effects are commonly associated with phentermine. It can cause impotence in men, which is the inability to achieve or maintain an erection. The exact number of men affected by this due to phentermine has not yet been reported.
This drug can also cause a change in libido (sex drive) for some who take it. This can affect both men and women; however, it has not been reported whether it more often increases or decreases the libido.
Signs of Allergic Reaction
As with any drug, there is always a risk of an allergic reaction. According to Drugs.com, the signs to watch for include swelling of your face, lips, throat and mouth; hives; itching; an unexplained rash; and difficulty breathing. Seek emergency medical attention if any of these happen to you.
Signs of Overdose
Drugs.com states that an overdose of phentermine can be fatal; this is why it's vital to only take it as prescribed. However the signs to watch for include confusion, feelings of aggression, vomiting, stomach pain, nausea, diarrhea, heart palpitations, chest pain, tremors (uncontrollable shaking), seizures and rapid breathing.
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