Clonidine 0.3mg
Generic For: Catapres
Clonidine 0.3mg (brand name Catapres) is a centrally acting alpha-2 adrenergic agonist tablet most commonly prescribed to lower high blood pressure. It is also used for certain other conditions under a provider's direction. After a licensed provider reviews your prescription, your order ships from a licensed U.S. pharmacy.
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100-day supply · $0.25/tablet
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Buy Clonidine 0.3mg Online (Catapres)
Clonidine is a centrally acting alpha-2 agonist used for high blood pressure, ADHD, and withdrawal symptoms.
Clonidine 0.3mg Quick Facts
| Drug class | Alpha-2 adrenergic agonist |
|---|---|
| Treats | High blood pressure, ADHD (off-label), opioid withdrawal symptoms (off-label) |
| Form | Tablet |
| Typical dosing | Take 1 tablet by mouth daily. |
| Prescription required | Yes — prescription only |
What Is Clonidine 0.3mg?
Clonidine is a centrally acting alpha-2 adrenergic agonist available as a 0.3mg tablet, sold under the brand name Catapres. It works by acting on receptors in the brain that reduce nerve signals telling blood vessels to tighten, allowing them to relax and lowering blood pressure. Clonidine tablets are FDA-approved for hypertension and are also prescribed off-label for several other conditions. It requires a valid prescription from a licensed U.S. healthcare provider.
What Does Clonidine 0.3mg Treat?
High blood pressure (hypertension)
ADHD symptoms (off-label; extended-release form is FDA-approved)
Opioid withdrawal symptoms (off-label)
Menopausal hot flashes (off-label)
Tic disorders such as Tourette syndrome (off-label)
Alcohol and nicotine withdrawal support (off-label)
Clonidine 0.3mg Dosage
Hypertension: Start 0.1 mg by mouth twice daily (morning and bedtime).
Titrate by 0.1 mg/day at weekly intervals as directed; usual maintenance 0.2–0.6 mg/day in divided doses.
Maximum: 2.4 mg/day. Do not stop abruptly; taper over 2–4 days as directed.
Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.
Clonidine 0.3mg Side Effects
Common side effects
- Dry mouth
- Drowsiness or sedation
- Dizziness
- Constipation
- Fatigue or weakness
- Headache
- Nausea
Serious side effects
Stop taking this medication and seek medical attention right away if you experience:
- Very slow heart rate (bradycardia)
- Severe low blood pressure or fainting
- Rebound high blood pressure after abrupt discontinuation
- Allergic reaction (rash, swelling, difficulty breathing)
- Hallucinations or severe confusion
- Depression or mental status changes
Warnings & Interactions
Do not stop suddenly — abrupt discontinuation can cause rebound hypertension; taper as directed
May cause significant drowsiness; use caution driving or operating machinery
Avoid alcohol and other CNS depressants, which increase sedation
Use caution with beta-blockers, digoxin, and other drugs that slow heart rate
Tricyclic antidepressants may reduce clonidine's blood pressure effect
Use caution in severe coronary insufficiency, recent heart attack, or kidney impairment
Contraindicated with known hypersensitivity to clonidine
Tell your prescriber about all medications, supplements, and health conditions before starting clonidine 0.3mg.
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