Generic name: Candesartan.

Atacand is an angiotensin II receptor antagonist, a new class of blood pressure medications. It works by preventing the angiotensin II hormone from constricting the blood vessels, which usually raises blood pressure. May be used alone or in combination with other antihypertensives. 

Quick Facts About Atacand


Used to control mild to moderate hypertension (high blood pressure).

Atacand Dosage

Take exactly as prescribed, with or without food. Do not increase dose or discontinue use without doctor’s approval.

  • Usual adult dose: initially — 16 milligrams once per day. Final dose will be 8 to 32 milligrams once or twice per day. A thiazide-type diuretic may be added to therapy if necessary.
  • Usual child dose: not generally prescribed for children.
  • Missed dose: take as soon as possible, unless almost time for next dose. In that case, do not take missed dose; go back to regular schedule. Do not double doses.

Atacand Side Effects

Overdose symptoms:

low blood pressure (indicated by dizziness or fainting and rapid heartbeat) or slow heartbeat. If you suspect an overdose, immediately seek medical attention.

More common side effects: headache, dizziness.

Less common Atacand side effects: back pain, cold-like symptoms, drowsiness, flushing, rash, upper respiratory tract infection. Rare side effects: abdominal pain, allergy, chest pain, diarrhea, fatigue, joint pain, swelling, vomiting.


Use Atacand carefully in combination with other blood-pressure-lowering medications.

Do not combine Atacand with over-the-counter medications that may raise blood pressure, such as decongestants, diet pills, or other stimulants. 

Special Cautions

Atacand may cause injury and death to a fetus when used during the second or third trimesters. If pregnant or planning to become pregnant, stop taking medication and inform your doctor immediately. Appears in breast milk; could affect a nursing infant.

No special precautions apply to seniors.

Not generally prescribed for children.

  • Use with caution if you have a history of kidney disease or severe congestive heart failure.
  • Avoid strenuous exercise and very hot weather, and drink plenty of water to avert a rapid drop in blood pressure.

Note: provides accurate and independent information prescription pills, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. If you have questions about  dosage, or Atacand side effects, please contact your healthcare provider.