Candesartan, Angiotensin II Receptor Blocker


The drug is prescribed to treat Hypertension (high blood pressure). In addition, it helps to prevent heart attacks, strokes, heart failure and kidney complications.

IUPAC Name: 2-ethoxy-3-[[4-[2-(2H-tetrazol-5-yl) phenyl] phenyl] methyl] benzimidazole-4-carboxylic acid

Drug Class: Angiotensin II Receptor Blocker

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Route of administration: Oral

This drug is not a prescribed drug and not an OTC Drug  

Drug Action Mechanism 

This medication is an Angiotensin II Receptor Blocker. It works by lowering blood pressure by relaxing and widening blood vessels (i.e., arteries and veins) and allowing blood to flow more smoothly and the heart to pump blood more effectively.  

Side Effects

Candesartan side effects include dizziness, exhaustion, back pain, nasal blockage, coughing, sore throat, lightheadedness, fainting and elevated potassium levels.


  • Avoid using this medication, if the person is pregnant. Consult a doctor if the person becomes pregnant while taking this medication since it might cause damage or even death to the developing fetus.
  • Do not use this medication with aliskiren (a direct renin inhibitor) if the person is diabetic.


Before using this medication, follow these precautions and notify a doctor

  • If the person is allergic to the drug or other angiotensin receptor blockers, or if the person has other allergies,
  • If the person is taking any other medication (prescribed, non-prescribed, or herbal medication),
  • If the person is suffering from any cardiac disease, hepatic disease, renal disease, dehydration, or a high blood potassium level,
  • There might be an increase in potassium levels by using this medication. Avoid potassium-rich substitutes, 
  • Due to the increased risk of side effects, this medication should not be used in children younger than 1 year age. 
  • If the person had undergone any type of surgery i.e., eye or dental surgery, 
  • While taking this medication, limit alcohol usage since it increases the chances of developing blurred vision, dizziness or drowsiness. It may also cause a loss of alertness,
  • The person must be aware that dehydration, vomiting, excessive perspiration and diarrhoea can lower blood pressure which leads to dizziness,
  • The adverse effects of this medication might affect elder people more severely.
  • Consult a doctor if the person is pregnant and breastfeeding.

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