What Are the Side Effects of Phentermine HCl 30 Mg?

Phentermine hydrochloride is a medication designed as a short-term appetite suppressant for weight loss. This medication is only a part of a weight-reduction program that includes dieting, exercising and counseling. Phentermine hydrochloride should only be used in cases where the patient's excessive weight could lead to serious medical problems. Phentermine hydrochloride is listed under the brand name Adipex-P.

Cardiovascular Stimulation

Phentermine hydrochloride is capable of cardiovascular stimulation in order to make the body think that it does not need food. By not slowing down blood flow, the body does not feel as if additional energy is needed. However, Gate Pharmaceuticals warns that this increased cardiovascular stimulation may also lead to the side effects of elevated blood pressure, tachycardia, palpitation and primary pulmonary hypertension or regurgitant cardiac valvular disease.

Central Nervous System Stimulation

Phentermine hydrochloride is sympathomimetic amine a class that is characterized by central nervous stimulation. This is necessary for appetite suppression and “telling” the brain that the body is no longer hungry. According to Gate Pharmaceuticals, this stimulation may be followed with side effects such as restlessness, dizziness, insomnia, euphoria, dysphoria, tremors and headache.

Gastrointestinal Disturbances

The nature of phentermine hydrochloride and its treatment of obesity makes gastrointestinal disturbances unavoidable. Disturbances beyond general unease are listed by Gate Pharmaceuticals as diarrhea, constipation, an unpleasant taste in the mouth and dryness of the mouth.

Allergic Reactions

An allergic reaction to phentermine hydrochloride may cause uticaria. Uticaria is characterized by itchy skin eruptions. If raised itchy skin develops after using this drug a medical professional should be consulted.

Endocrine Depression

Endocrine depression may be observed while taking phentermine hydrochloride. This is related to the changes in the central nervous system. Gate Pharmaceuticals lists impotence and changes in libido as the primary symptoms of endocrine depression.