About

Brand names: Ionamin, Adipex-P
Generic name: Phentermine hydrochloride

Phentermine, an appetite suppressant, is prescribed for short-term use (a few weeks) as part of an overall weight reduction program that also includes dieting, exercise, and counseling. The drug is for use only by excessively overweight individuals who have a condition - such as diabetes, high blood pressure, or high cholesterol - that could lead to serious medical problems.

How to take

This medication is best taken on an empty stomach one hour before meals. Sustained-release or long acting products must be swallowed whole. Crushing or chewing them will destroy the long action and may cause increased side effects. Because this medication may cause sleeplessness, avoid taking a dose late in the day. Take this medication as prescribed. Do not take it more often or longer than directed. It is usually taken for 8 to 12 weeks. Use in combination with other appetite suppressant medicine is generally not recommended. Consult your doctor before such use.

Missed dose

Skip the missed dose completely; then take the next dose at the regularly scheduled time.

Warnings and precautions

Tell your doctor your complete medical history, especially if you have: high blood pressure, an over-active thyroid, glaucoma, diabetes, emotional problems. This medication can be habit forming and must be used with caution. Alcohol can increase unwanted side effects of dizziness. Limit alcohol use. This drug is not recommended for use in children. Consult your doctor or pharmacist for further information. This medication should be used only when clearly needed during pregnancy. Discuss the risk and benefits with your doctor. This drug may be excreted into breast milk. You may have to stop nursing or stop using this drug. Consult your doctor before breast-feeding.

Side effects

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible.
Only your doctor can determine if it is safe for you to continue taking Phentermine hydrochloride.

More common side effects may include: Changes in sex drive, constipation, diarrhea, dizziness, dry mouth, exaggerated feelings of depression or elation, headache, high blood pressure, hives, impotence, inability to fall or stay asleep, increased heart rate, overstimulation, restlessness, stomach or intestinal problems, throbbing heartbeat, tremors, unpleasant taste.

Storage

Store at room temperature away from sunlight and moisture. Do not store in the bathroom.