Clonidine: Uses, Dosage, Side Effects

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(Last Updated On: December 18, 2017)

Clonidine is the medicine that works by decreasing the chemicals in your body and as a result lowering your blood pressure also.

It also allows your blood vessels to relax and reduces your heart beat.

It is mainly used in the treatment of hypertension and also treat attention deficit hyperactivity disorders.

Information about Clonidine:

Before intake of this medicine, inform your doctor about if you are sufferring from the diseases related to cardiac like coronary artery, heart rhythm, slow heartbeat etc. as this medicine can reduce the heartbeat. The major side effect of this medicine is allergic reaction.

Dosage pattern of clonidine:

Adult dose:

For Hypertension

Initial dose: is to be taken 0.1mg orally twice in a day or else as directed by your doctor.

Maintenance dose: is about 0.2-0.6mg /day is given in equally divided doses or else as directed by your doctor.

For Pain:

Initial dose: is about 30mcg/hr depending upon the pain relief and also the occurrence of adverse events.

Maximum dose: is about 40mcg/hr or else as directed by your doctor.

For Pheochromocytoma Diagnosis:

It is about 0.3mg to be taken orally once in a day. Only clonidine is recommended for baseline determination.

For Hypertensive Emergency:

It is about 0.2mg to be taken orally once in a day. Additional doses may be 0.1mg may be given as needed.

For Alcohol Withdrawal:

It is about 0.1mg to be taken orally twice in a day and in the form of transdermal patch once in a week.


It is about 0.1mg to be taken orally twice in a day and in the form transdermal patch once in a week.

Clonidine Overdose:

Overdosage of Clonidine causes very serious symptoms, immediate treatment is required if any of the following symptoms are seen or experienced by the patient.

Symptoms of overdose:

  • Headache
  • Anxiety
  • Chest pain
  • Shortness of breath
  • Feeling cold
  • Extreme weakness
  • Pinpoint pupil

Clonidine Side effects:

Severity: major

  • Mental depression
  • Swelling of the feet
  • Confusion
  • Anxiety
  • Drowsiness
  • Dry mouth
  • Fever
  • Irritability
  • Shaking
  • Skin rash
  • Trouble breathing
  • insomnia

Severity: minor

  • Constipation
  • Darkening of the skin
  • Decrease of sexual ability
  • Nausea and vomiting
  • Loss of appetite
  • Blurred vision
  • Pale skin
  • Joint pain
  • Dizziness
  • Fatigue
  • Headache
  • Irritability
  • Nightmares
  • Increased in body temperature
  • Tremor
  • Hypotension
  • Sinus
  • Arrhythmias
  • Irritability
  • palpitations

If any of the above symptoms are observed in the patient under this medication then immediate medical attention is required.

Clonidine: brand names, price list

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