Adipex-P

What Is Adipex-P?

Adipex-P (phentermine) is an appetite suppressant used in combination with diet and exercise for the short-term treatment of obesity. A generic version of Adipex-P is available.

What Are Side Effects of Adipex-P?

Side effects of Adipex-P include:

• nausea,
• vomiting,
• upset stomach,
• diarrhea,
• dry mouth,
• constipation,
• an unpleasant taste in mouth,
• hives,
• impotence,
• palpitations,
• high blood pressure,
• hyperactivity,
• sleep problems (insomnia),
• restlessness,
• headache,
• tremors,
• dizziness, and
• increased or decreased interest in sex.

Tell your doctor if you have serious side effects of Adipex-P including:

• shortness of breath, even with mild exertion;
• chest pain, feeling like you might pass out;
• swelling in your ankles or feet;
• pounding heartbeats or fluttering in your chest;
• confusion or irritability, unusual thoughts or behavior;
• feelings of extreme happiness or sadness; or
• dangerously high blood pressure (severe headache, blurred vision, buzzing in your ears, anxiety, chest pain, shortness of breath, uneven heartbeats, seizure).

Adipex-P has been associated with pulmonary hypertension and defects in heart valves.

Dosage for Adipex-P

The recommended dose of Adipex-P is 30 mg once daily.

What Drugs, Substances, or Supplements Interact with Adipex-P?

Adipex-P may interact with alcohol, monoamine oxidase inhibitors (MAOIs), insulin or oral diabetes medications, blood pressure medications, or antidepressants. Tell your doctor all medications and supplements you use.

Adipex-P During Pregnancy and Breastfeeding

Adipex-P is not recommended for use during pregnancy; weight loss during pregnancy can harm a fetus, even if you are overweight. Do not use Adipex-P if you are pregnant. Adipex-P passes into breast milk and may harm a nursing baby. Breastfeeding while taking Adipex-P is not recommended. Long-term use of Adipex-P may cause physical and psychological dependence. A withdrawal reaction consisting of excessive drowsiness, fatigue, tremors and depression may occur after prolonged use.

Additional Information

Our Adipex-P Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

 

Adipex-P Consumer Information

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

• feeling short of breath, even with mild exertion;
• chest pain, feeling like you might pass out;
• swelling in your ankles or feet;
• pounding heartbeats or fluttering in your chest;
• tremors, feeling restless, trouble sleeping;
• unusual changes in mood or behavior; or
• increased blood pressure--severe headache, blurred vision, pounding in your neck or ears, anxiety, nosebleed.

Common side effects may include:

• itching;
• dizziness, headache;
• dry mouth, unpleasant taste;
• diarrhea, constipation, stomach pain; or
• increased or decreased interest in sex.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Read the entire detailed patient monograph for Adipex-P (Phentermine Hydrochloride)

 

Adipex-P Professional Information

SIDE EFFECTS

The following adverse reactions are described, or described in greater detail, in other sections:

• Primary pulmonary hypertension [see WARNINGS AND PRECAUTIONS]
• Valvular heart disease [see WARNINGS AND PRECAUTIONS]
• Effect on the ability to engage in potentially hazardous tasks [see WARNINGS AND PRECAUTIONS]
• Withdrawal effects following prolonged high dosage administration [see Drug Abuse And Dependence]

The following adverse reactions to phentermine have been identified:

Cardiovascular

Primary pulmonary hypertension and/or regurgitant cardiac valvular disease, palpitation, tachycardia, elevation of blood pressure, ischemic events.

Central Nervous System

Overstimulation, restlessness, dizziness, insomnia, euphoria, dysphoria, tremor, headache, psychosis.

Gastrointestinal

Dryness of the mouth, unpleasant taste, diarrhea, constipation, other gastrointestinal disturbances.

Allergic

Urticaria.

Endocrine

Impotence, changes in libido.

Read the entire FDA prescribing information for Adipex-P (Phentermine Hydrochloride)