Catapres Is a Prescription Blood Pressure Medication

Catapres (Clonidine) is a centrally acting alpha-2 adrenergic agonist that lowers blood pressure by reducing nerve signals that constrict blood vessels.

If your doctor has mentioned Catapres — or you've seen it on your prescription bottle — you probably have questions. What is it? What's it actually used for? Is it safe? How much does it cost? This guide covers everything you need to know in plain language.

What Is Catapres?

Catapres is the brand name for the generic drug Clonidine hydrochloride. It belongs to a class of drugs called central alpha-2 adrenergic agonists, which work in the brain to lower blood pressure and heart rate.

Key facts:

• Generic name: Clonidine (also sold as Clonidine HCl)
• Brand names: Catapres, Catapres-TTS (patch), Kapvay (extended-release for ADHD), Nexiclon XR, Onyda XR, Javadin
• Drug class: Central alpha-2 adrenergic agonist
• Original manufacturer: Boehringer Ingelheim
• FDA-approved: Yes — for hypertension (all forms) and ADHD (Kapvay, ages 6-17)
• Controlled substance: No — Catapres is not a controlled substance
• Generic available: Yes — generic Clonidine has been available for decades

What Is Catapres Used For?

FDA-Approved Uses

• Hypertension (high blood pressure) — The primary FDA-approved use. Catapres is used alone or with other medications to control blood pressure.
• ADHD — The extended-release form (Kapvay) is FDA-approved for children ages 6-17, either alone or with stimulant medications.

Common Off-Label Uses

Clonidine is one of the most widely prescribed medications off-label. Doctors frequently prescribe it for:

• Opioid withdrawal symptoms — Reduces sweating, anxiety, agitation, and muscle aches during withdrawal
• Alcohol withdrawal — Helps manage autonomic symptoms
• Nicotine withdrawal / smoking cessation
• Anxiety disorders — Especially in patients who can't take benzodiazepines
• Insomnia — The sedating effect makes it useful as a sleep aid
• PTSD — Particularly for nightmares and hyperarousal symptoms
• Tourette syndrome and tic disorders
• Menopausal hot flashes — An alternative when hormone therapy isn't an option
• Migraine prevention
• Restless leg syndrome

For more on how Catapres works in the body, see our mechanism of action guide.

How Is Catapres Taken?

Catapres comes in several forms, and the right one depends on your condition and lifestyle:

Immediate-Release Oral Tablets

• Strengths: 0.1 mg, 0.2 mg, 0.3 mg
• Dosing: Usually 0.1 mg twice daily to start, increasing as needed up to 0.4 mg/day
• Take with or without food
• Most doctors recommend the larger dose at bedtime to minimize daytime drowsiness

Extended-Release Tablets (Kapvay)

• Strengths: 0.1 mg, 0.2 mg
• Used for: ADHD in children ages 6-17
• Swallow whole — do not crush, chew, or split

Transdermal Patches (Catapres-TTS)

• Strengths: 0.1 mg/day, 0.2 mg/day, 0.3 mg/day
• Apply once weekly to a clean, dry, hairless area on the upper arm or torso
• Rotate application sites to prevent skin irritation
• Provides steady medication delivery without remembering twice-daily pills

Oral Suspension (Onyda XR)

• Liquid form for patients who have difficulty swallowing tablets

Critical Safety Note

Do not stop Catapres suddenly. Abrupt discontinuation can cause dangerous rebound hypertension — a sudden spike in blood pressure with symptoms like severe headache, nervousness, agitation, and tremor. Always taper gradually over 2-4 days under your doctor's supervision.

Who Should Not Take Catapres?

Catapres is not right for everyone. It should be avoided or used with extreme caution in:

• People with known hypersensitivity to Clonidine or any patch components
• Patients on beta-blockers who plan to stop Clonidine (must taper Clonidine first to avoid dangerous interactions)
• Elderly patients — Increased risk of falls, sedation, and low blood pressure
• Pregnant women — Category C; use only if benefit outweighs risk
• Breastfeeding mothers — Clonidine is excreted in breast milk
• Patients with severe cardiovascular disease — Including recent heart attack, heart failure, or conduction abnormalities

Always give your doctor a complete list of your medications. Catapres has important interactions with beta-blockers, tricyclic antidepressants, opioids, and other CNS depressants. See our full drug interactions guide for details.

How Much Does Catapres Cost?

The cost varies significantly depending on the formulation:

• Generic Clonidine tablets: $4 to $15 for a 30-day supply with a coupon. As low as $2-$4 with GoodRx Gold or Walmart/Costco $4 generics programs.
• Brand-name Catapres-TTS patches: $150 to $400+ for a 30-day supply without insurance. Generic patch options may be available at lower prices.

Insurance Coverage

Generic Clonidine tablets are on most formularies as Tier 1 (preferred generic) with copays typically $0-$15. Brand-name patches may require prior authorization or step therapy (trying other medications first).

Savings Options

For a complete breakdown of coupons, discount cards, and patient assistance programs, see our guide to saving money on Catapres.

Final Thoughts

Catapres is a well-established medication that's been used for decades. It's effective, affordable in its generic form, and remarkably versatile — treating everything from high blood pressure to ADHD to opioid withdrawal. The key things to remember: take it as prescribed, never stop it suddenly, and report any side effects to your doctor.

Need to fill your Catapres prescription? Use Medfinder to find it in stock at a pharmacy near you.