Clonidine Dosage: What You Need to Know
If you’ve been handed a clonidine prescription, you probably wonder how much to take and when to change it. Clonidine is used for high blood pressure, ADHD, and even opioid withdrawal. The right dose depends on why you’re taking it, your age, and how your body reacts.
Typical Dosing for Common Uses
For adults with hypertension, doctors usually start with 0.1 mg taken twice a day. If blood pressure stays high, they may increase the dose to 0.2 mg twice daily. Most people never need more than 0.4 mg total per day.
When it comes to ADHD in children aged 6‑17, the usual starting point is 0.05 mg at bedtime. The doctor can raise the dose by 0.1 mg every week until symptoms improve, but they generally keep the total under 0.4 mg per day.
For opioid withdrawal, the typical adult regimen begins with 0.2 mg taken three times a day. Doses may be increased to 0.3‑0.6 mg every few days, then tapered off over a week or two as cravings lessen.
How to Adjust Your Dose Safely
Never change the dose on your own. If you feel dizzy, very sleepy, or notice a rapid heartbeat, call your doctor right away. Those could be signs the dose is too high.
If you miss a dose, take it as soon as you remember—unless it’s almost time for the next one. In that case, skip the missed pill and continue with your regular schedule. Doubling up can cause low blood pressure or fainting.
When it’s time to stop clonidine, do it gradually. Stopping suddenly can make blood pressure spike sharply. Your doctor will give you a taper plan, usually cutting the dose by 0.1 mg every few days until it’s gone.
Keep track of any side effects like dry mouth, constipation, or mild drowsiness. Most people get used to them after a week or two. If they’re severe or don’t go away, let your prescriber know; they might switch you to another medicine.
Remember that clonidine interacts with some blood pressure meds and certain antidepressants. Always list every drug you take when you see a doctor or pharmacist.
Bottom line: start low, follow the schedule your doctor gave you, and never tweak the amount without asking. With the right approach, clonidine can control blood pressure, calm ADHD symptoms, and help manage withdrawal safely.
