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Regimex

Generic Name: Benzphetamine (benz FET a meen)
Brand Name: Didrex, Regimex

Uses of Regimex:

  • It is used to treat obesity.

What do I need to tell my doctor BEFORE I take Regimex?

For all patients taking Regimex (benzphetamine):

  • If you have an allergy to benzphetamine or any other part of this medicine.
  • If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
  • If you have any of these health problems: Blood vessel disease, glaucoma, high blood pressure, nervous, anxious, or tense state, overactive thyroid disease, or structure problems of the heart or other heart problems.
  • If you have ever abused drugs.
  • If you are pregnant or may be pregnant. Do not take Regimex if you are pregnant.
  • If you are breast-feeding. Do not breast-feed while you take this medicine.
  • If you have taken certain drugs used for low mood (depression) like isocarboxazid, phenelzine, or tranylcypromine or drugs used for Parkinson's disease like selegiline or rasagiline in the last 14 days. Taking Regimex within 14 days of those drugs can cause very bad high blood pressure.
  • If you are taking another drug for weight loss or have taken one within the last year.

Children:

  • If your child is younger than 12 years of age. Do not give this medicine to a child younger than 12 years of age.

This is not a list of all drugs or health problems that interact with Regimex.

Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take this medicine with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.

What are some things I need to know or do while I take Regimex?

  • Tell all of your health care providers that you take Regimex. This includes your doctors, nurses, pharmacists, and dentists.
  • Avoid driving and doing other tasks or actions that call for you to be alert until you see how this medicine affects you.
  • If you have been taking Regimex for a long time or at high doses, it may not work as well and you may need higher doses to get the same effect. This is known as tolerance. Call your doctor if this medicine stops working well. Do not take more than ordered.
  • If you have been taking Regimex for many weeks, talk with your doctor before stopping. You may want to slowly stop this medicine.
  • People who take drugs for weight loss like Regimex (benzphetamine) may have a higher chance of having raised pressure in the lungs. This is rare but is often deadly. Talk with your doctor.
  • If you have high blood sugar (diabetes), you will need to watch your blood sugar closely.
  • Do not take more than what your doctor told you to take. Taking more than you are told may raise your chance of very bad side effects.
  • Follow the diet and workout plan that your doctor told you about.
  • This medicine may cause harm to the unborn baby if you take it while you are pregnant. If you are pregnant or you get pregnant while taking this medicine, call your doctor right away.

How is this medicine (Regimex) best taken?

Use Regimex as ordered by your doctor. Read all information given to you. Follow all instructions closely.

  • Take this medicine early in the day to prevent sleep problems.
  • Take with or without food.

What do I do if I miss a dose?

  • Take a missed dose as soon as you think about it.
  • If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
  • Do not take 2 doses at the same time or extra doses.

Dosage Information (comprehensive)

What are some side effects that I need to call my doctor about right away?

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:

  • Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
  • Signs of high blood pressure like very bad headache or dizziness, passing out, or change in eyesight.
  • Chest pain or pressure or a fast heartbeat.
  • A heartbeat that does not feel normal.
  • Very nervous and excitable.
  • Lowered interest in sex.
  • Shortness of breath.
  • Swelling in the arms or legs.

What are some other side effects of Regimex?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:

  • Dizziness.
  • Feeling nervous and excitable.
  • Not able to sleep.
  • Headache.
  • Restlessness.
  • Shakiness.
  • Sweating a lot.
  • Dry mouth.
  • Loose stools (diarrhea).
  • Upset stomach.
  • Bad taste in your mouth.

These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.

You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.

Side Effects (complete list)

If OVERDOSE is suspected:

If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

How do I store and/or throw out Regimex?

  • Store at room temperature.
  • Protect from light.
  • Store in a dry place. Do not store in a bathroom.
  • Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
  • Check with your pharmacist about how to throw out unused drugs.

Consumer Information Use and Disclaimer

  • If your symptoms or health problems do not get better or if they become worse, call your doctor.
  • Do not share your drugs with others and do not take anyone else's drugs.
  • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
  • Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
  • Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about Regimex, please talk with your doctor, nurse, pharmacist, or other health care provider.
  • If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

This information should not be used to decide whether or not to take this medicine or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about Regimex. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from the healthcare provider. You must talk with the healthcare provider for complete information about the risks and benefits of using Regimex.

Review Date: December 6, 2017

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