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. If these effects persist or become bothersome, inform your doctor. Consult with your doctor if you think you are pregnant or before breast-feeding.
Alcohol can increase unwanted side effects of dizziness.
Limit alcohol use. Phentermine is not recommended for use in children. Consult your doctor or pharmacist for further information. For maximum effects, this must be used in conjunction with a diet and exercise program. Do not share Phentermine with others.