Catapres

Catapres treats high blood pressure. Catapres may cause dizziness, lightheadedness, and fainting if you get up too quickly from a lying position. This is more common when first starting Catapres.

Catapres Overview

Updated: 

Catapres is a prescription medication used to treat high blood pressure. Catapres belongs to a group of drugs called centrally acting alpha-agonist hypotensive agents, which work by relaxing the blood vessels and decreasing heart rate.

This medication comes in tablet form and is usually taken twice a day, with or without food.

Common side effects of Catapres include dry mouth, constipation, and sedation. Catapres can also cause dizziness or drowsiness. Do not drive or operate heavy machinery until you know how this medication will affect you. Alcohol may intensify this side effect.

Patient Ratings for Catapres

How was your experience with Catapres?

First, a little about yourself

Tell us about yourself in a few words?

What tips would you provide a friend before taking Catapres?

What are you taking Catapres for?

Choose one
  • Other
  • Alcohol-induced Disorders, Nervous System
  • Attention Deficit Disorder With Hyperactivity
  • Diarrhea
  • Dysmenorrhea
  • Glaucoma
  • Hot Flashes
  • Hypertension
  • Muscle Spasticity
  • Pain, Intractable
  • Sialorrhea
  • Substance Withdrawal Syndrome
  • Tourette Syndrome

How long have you been taking it?

Choose one
  • Less than a week
  • A couple weeks
  • A month or so
  • A few months
  • A year or so
  • Two years or more

How well did Catapres work for you?

Did you experience many side effects while taking this drug?

How likely would you be to recommend Catapres to a friend?

Catapres Cautionary Labels

precautionsprecautionsprecautions

Uses of Catapres

Catapres is a prescription medication used to treat high blood pressure.

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.

Manufacturer

Catapres Drug Class

Catapres is part of the drug class:

Side Effects of Catapres

Common side effects of Catapres tablets include:

  • fatigue
  • upper airway tract infection
  • irritability
  • sore throat
  • insomnia
  • nightmares
  • emotional disorder
  • constipation
  • nasal congestion
  • increased body temperature
  • dry mouth
  • ear pain

This is not a complete list of Catapres side effects. Ask your doctor or pharmacist for more information.

Serious side effects have been reported with clonidine. See “Drug Precautions” section.

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

 

Catapres Interactions

Tell your doctor about all the medicines you take including prescription and non-prescription medicines, vitamins, and herbal supplements. Especially tell your doctor if you take:

  • alcohol
  • barbiturates such as phenobarbital
  • tricyclic antidepressants such as selegiline (Emsam, Eldepryl), amitriptyline (Elavil), or nortriptyline (Aventyl, Pamelor)
  • antipsychotics such as haloperidol (Haldol), risperidone (Risperdal), and olanzapine (Zyprexa)
  • digoxin (Lanoxin)
  • calcium channel blockers such as verapamil (Calan), diltiazem (Cardizem), or amlodipine (Norvasc)
  • beta blockers such as carvedilol (Coreg), metoprolol (Lopressor, Toprol XL), and atenolol (Tenormin)

This is not a complete list of Catapres drug interactions. Ask your doctor or pharmacist for more information.

 

Catapres Precautions

Oral:

Serious side effects have been reported with Catapres including:

  • Rash. Use of Catapres TTS (patch) may result in a rash, and a switch to Catapres tablets may or may not cause this side effect.
  • Hypersensitivity (allergic) reaction. Use of the Catapres TTS (patch) may result in a rash, and a switch to Catapres tablets may or may not cause this side effect. Tell your healthcare provider right away if you have some or all of the following symptoms:
    • rash
    • itchiness
    • swelling of face or throat
  • Catapres can cause drowsiness or dizziness. Do not drive or operate heavy machinery until you know how Catapres affects you.
  • To avoid withdrawal side effects (e.g. nervousness, headaches, tremors), do not suddenly stop taking Catapres. Discuss with your doctor about slowly decreasing the dose before stopping use of this medication altogether.
  • Catapres may worsen pre-existing heart conduction abnormalities, especially if you are taking other drugs similar to the way clonidine works.
  • Do not use Catapres with other medications containing its active ingredient which is clonidine.
  • Do not take Catapres if you have a known hypersensitivity (allergic reaction) to Catapres or to any other component of the tablet.

Catapres Food Interactions

Medicines can interact with certain foods. In some cases, this may be harmful and your doctor may advise you to avoid certain foods. In the case of Catapres, there are no specific foods that you must exclude from your diet when receiving Catapres.

Alcohol may intensify some of the side effects of this medication.

Inform MD

Before taking Catapres, tell your doctor about all of your medical conditions. Especially tell your doctor if you:

  • if redness or swelling develops at patch site
  • have a history of heart problems
  • have hypertension due to pheochromocytoma (tumor of the adrenal glands)
  • are planning to undergo surgery
  • have kidney problems
  • have liver problems
  • wear contact lenses
  • are pregnant or breastfeeding

Tell your doctor about all the medicines you take including prescription and non-prescription medicines, vitamins, and herbal supplements.

Catapres and Pregnancy

Tell your doctor if you are pregnant or plan to become pregnant.

The FDA categorizes medications based on safety for use during pregnancy. Five categories - A, B, C, D, and X, are used to classify the possible risks to an unborn baby when a medication is taken during pregnancy.

Catapres falls into category C. No adequate studies have been done in pregnant women. Animal study results do not always equal that of human response. Catapres should be used during pregnancy only if clearly needed. It is not known if Catapres will harm your unborn baby.

 

Catapres and Lactation

Tell your doctor if you are breastfeeding or plan to breastfeed.

The active ingredient in Catapres is excreted in human breast milk. The effect of Catapres on the nursing infant is not known.

 

Catapres Usage

  • Take Catapres exactly as prescribed.
  • Catapres comes as a tablet.
  • To avoid withdrawal side effects (e.g. nervousness, headaches, tremors), do not suddenly stop taking Catapres. Discuss with your doctor about slowly decreasing the dose before stopping use of this medication altogether.
  • If you miss a dose, take the missed dose as soon as you remember. If it is almost time for the next dose (tablet), skip the missed dose and take your next dose at the regular time. Do not take two doses of Catapres at the same time.
  • Catapres tablets are usually taken twice daily, once in the morning and once in the evening, with or without food.

Catapres Dosage

Take Catapres exactly as prescribed by your doctor. Follow the directions on your prescription label carefully.

To start therapy, 0.1 mg tablet is given twice daily (morning and bedtime). Elderly patients may need to start from a lower dose. Further increments of 0.1 mg per day may be made at weekly intervals if necessary until the desired response is achieved. The typical dose range for Catapres tablet is 0.2 to 0.6 mg per day, divided into a morning and an evening dose. Maximum effective dose is 2.4 mg per day, but this dose amount is not commonly used.

Catapres Overdose

If you take too much Catapres call your healthcare provider or local Poison Control Center, or seek emergency medical attention right away.

If Catapres is administered by a healthcare provider in a medical setting, it is unlikely that an overdose will occur. However, if overdose is suspected, seek emergency medical attention.