Phentermine (Phentermine hydrochloride) — Uses, Dosage, Side Effects & Safety

Drug class: Anorectic (Centrally Acting Appetite Suppressant)

Overview

Phentermine is a prescription medication used to help with weight loss in adults who are overweight or obese and have not been able to lose enough weight with diet and exercise alone. It is typically used short-term, as part of a comprehensive weight management plan that includes dietary changes, increased physical activity, and behavioral modifications. Phentermine works by suppressing appetite. It stimulates the central nervous system (nerves and brain), which increases heart rate and blood pressure and decreases appetite. This helps people eat less and lose weight more effectively. Key points: Phentermine should only be used under medical supervision. It is not suitable for everyone, especially those with certain heart conditions or a history of substance misuse. It is not a substitute for healthy eating and exercise.

Frequently Asked Questions about Phentermine

How long can I take phentermine?

Phentermine is generally prescribed for short-term use, typically up to 12 weeks. Long-term safety and effectiveness have not been established.

Can I drink coffee or caffeinated drinks while on phentermine?

Caffeine can increase the risk of side effects such as nervousness, palpitations, and insomnia. Limit caffeine intake while taking phentermine.

Is phentermine addictive?

Phentermine has the potential for abuse and dependence, especially in individuals with a history of substance misuse. Use only as directed by your doctor.

Can I take phentermine with other weight loss medications?

Combining phentermine with other weight loss drugs is not recommended due to the risk of serious side effects, including pulmonary hypertension.

What should I do if I experience chest pain or shortness of breath?

Stop taking phentermine and seek immediate medical attention if you experience chest pain, shortness of breath, or other serious symptoms.

Will I regain weight after stopping phentermine?

Weight regain is possible if lifestyle changes are not maintained. Phentermine should be part of a comprehensive weight management plan including diet and exercise.

Is phentermine safe during pregnancy or breastfeeding?

No. Phentermine should not be used during pregnancy or breastfeeding due to potential harm to the baby.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.