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Bontril

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Bontril PDM

Bontril PDM

Bontril Side Effects Center

Medical Editor: John P. Cunha, DO, FACOEP

Bontril PDM (phendimetrazine tartrate) is an appetite suppressant, used along with a doctor-approved, reduced-calorie diet, exercise, and a behavior change program to help patients lose weight. It is used in people who are significantly overweight (obese) and have not been able to lose enough weight with diet and exercise alone. Common side effects include dizziness, dry mouth, blurred vision, or difficulty sleeping.

The recommended dosage of Bontril PDM is 1 tablet (35 mg) 2-3 times daily, one hour before meals. Bontril PDM may interact with other drugs. Tell your doctor all prescription and nonprescription/herbal products you may use, especially: drugs for depression, diabetes, high blood pressure, or other stimulants. Do not drive, use machinery, or do any activity that requires alertness or clear vision when taking Bontril PDM. Avoid alcoholic beverages. Caffeine can increase side effects of this medication. Bontril PDM should not be taken during pregnancy. Consult your doctor before using Bontril PDM if you are breastfeeding.

Our Bontril PDM (phendimetrazine tartrate) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

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.

What is Patient Information in Detail?

Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.

Bontril in Detail - Patient Information: Side Effects

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

Stop using phendimetrazine and call your doctor at once if you have a serious side effect such as:

  • 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;
  • 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, confusion, chest pain, shortness of breath, uneven heartbeats, seizure).

Less serious side effects may include:

  • feeling restless or hyperactive;
  • headache, dizziness, tremors;
  • sleep problems (insomnia);
  • flushing (warmth, redness, or tingly feeling);
  • dry mouth;
  • diarrhea or constipation, upset stomach; or
  • increased or decreased interest in sex, impotence.

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 Bontril (Phendimetrazine Tartrate Tablets) »

What is Patient Information Overview?

A concise overview of the drug for the patient or caregiver from First DataBank.

Bontril Overview - Patient Information: Side Effects

SIDE EFFECTS: Dizziness, dry mouth, difficulty sleeping, irritability, nausea, vomiting, diarrhea, or constipation may occur. If these effects persist or worsen, notify your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor immediately if any of these unlikely but serious side effects occur: fast/irregular/pounding heartbeat, mental/mood changes (e.g., agitation, uncontrolled anger, hallucinations, nervousness), uncontrolled muscle movements, change in sexual ability/interest.

Stop taking this medication and seek immediate medical attention if any of these rare but very serious side effects occur: severe headache, slurred speech, seizure, weakness on one side of the body, vision changes (e.g., blurred vision).

This drug may infrequently cause serious (sometimes fatal) lung or heart problems (pulmonary hypertension, heart valve problems). The risk increases with longer use of this medication and use of this drug along with other appetite-suppressant drugs/herbal products. If you notice any of the following unlikely but very serious side effects, stop taking this medication and consult your doctor or pharmacist immediately: chest pain, difficulty breathing with exercise, decreased ability to exercise, fainting, swelling of the legs/ankles/feet.

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any of the following symptoms of a serious allergic reaction: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Read the entire patient information overview for Bontril (Phendimetrazine Tartrate Tablets)»

What is Prescribing information?

The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.

Bontril FDA Prescribing Information: Side Effects
(Adverse Reactions)

SIDE EFFECTS

Cardiovascular: Palpitation, tachycardia, elevated blood pressure, ischemic events.

Valvular heart disease associated with the use of some anorectic agents such as fenfluramine and dexfenfluramine, both independently and especially when used in combination with other anorectic drugs, have been reported. However, no case of this valvulopathy has been reported when phendimetrazine tartrate has been used alone.

Central Nervous System: Overstimulation, restlessness, insomnia, agitation, flushing, tremor, sweating, dizziness, headache, psychotic state, blurring of vision.

Gastrointestinal: Dryness of the mouth, nausea, diarrhea, constipation, stomach pain.

Genitourinary: Urinary frequency, dysuria, changes in libido.

Drug Abuse And Dependence

Controlled Substance: Bontril® PDM (phendimetrazine tartrate) is a Schedule lll controlled substance.

Dependence: Phendimetrazine tartrate is related chemically and pharmacologically to the amphetamines. Amphetamines and related stimulant drugs have been extensively abused, and the possibility of abuse of phendimetrazine should be kept in mind when evaluating the desirability of including a drug as part of a weight reduction program. Abuse of amphetamines and related drugs may be associated with intense psychological dependence and severe social dysfunction. There are reports of patients who have increased the dosage to many times that recommended. Abrupt cessation following prolonged high dosage administration results in extreme fatigue and mental depression; changes are also noted on the sleep EEG. Manifestations of chronic intoxication with anorectic drugs include severe dermatoses, marked insomnia, irritability, hyperactivity and personality changes. The most severe manifestation of chronic intoxications is psychosis, often clinically indistinguishable from schizophrenia.

Read the entire FDA prescribing information for Bontril (Phendimetrazine Tartrate Tablets) »

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Bontril PDM - User Reviews

Bontril PDM User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication Bontril PDM sorted by most helpful. Patient Discussions FAQs

Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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