Advertisement

Are there any side effects of phentermine?

Donna Hill Howes, RN
Family Practitioner

Side effects may include insomnia, restlessness, dizziness, headaches, mood changes, high blood pressure, a rapid, strong or irregular heartbeat, dry mouth, diarrhea, and vomiting. Rarely, heart valve problems have been reported, and there may be a risk of pulmonary hypertension. Phentermine may be habit forming, and it can make it dangerous to drive or to operate machinery. 

This answer was adapted from Sharecare's award-winning AskMD app. Start a consultation now to find out what's causing your symptoms, learn how to manage a condition, or find a doctor. 
 

Continue Learning about Antiobesity Agent

How effective are prescription diet pills?
Howard E. Lewine, MDHoward E. Lewine, MD
I am aware of four prescription diet pills that have been approved by the Food and Drug Administrati...
More Answers
Who should take Qsymia for weight loss?
Stacy Wiegman, PharmDStacy Wiegman, PharmD
Qsymia is indicated for patients who have a BMI greater than 30, or for patients with a BMI >27 and ...
More Answers
Will Hydroxycut help me lose weight?
Discovery HealthDiscovery Health
In a nation that likes to eat its weight in deluxe gooeyburgers, a little pill that would reduce you...
More Answers
Are There Prescription Drugs That Help with Weight Loss?
Are There Prescription Drugs That Help with Weight Loss?

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.