Compare Atacand vs. Benicar

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Atacand
(candesartan)

Benicar
(olmesartan)

Lowers blood pressure. Atacand (candesartan) is a good blood pressure-lowering medicine that protects your kidneys and has few side effects.Lowers blood pressure. Benicar (Olmesartan) is a good blood pressure-lowering medicine that protects kidney function like an ACE inhibitor, but with fewer side effects.
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Prices and coupon for 30 (32mg) tablets of candesartan
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Prices and coupon for 30 (20mg) tablets of olmesartan
Reviews & ratings
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Have you used Atacand (candesartan)?
Worth itNot sureNot worth it
Reviews for Benicar (olmesartan)
65%
-35% worse vs. Atacand (candesartan)
63%
-37% worse vs. Atacand (candesartan)
12%
-12% worse vs. Atacand (candesartan)
118 reviews
Have you used Benicar (olmesartan)?
Worth itNot sureNot worth it
Side effects
AtacandBenicar
  • Upper respiratory infection 2%
  • Dizziness 1%
  • Back pain 1%
  • Sore throat 1%
  • Runny nose 1%
More Atacand side effects »
  • Dizziness 2%
More Benicar side effects »
How it works
AtacandBenicar
Atacand (candesartan) is an angiotensin receptor blocker (ARB). It relaxes blood vessels by blocking a chemical that usually makes blood vessels tighter. This lowers your blood pressure and allows more blood and oxygen to get to your heart and other organs.Benicar (Olmesartan) is an angiotensin receptor blocker (ARB). It blocks a chemical that tightens blood vessels. This makes blood vessels relax, which lowers blood pressure and allows more blood and oxygen to get to your heart and other organs.
Type of medication
AtacandBenicar
Prescription only
Prescription only
Available as
AtacandBenicar
  • Pill
  • Pill
Used for
AtacandBenicar
Risk factors for serious side effects
AtacandBenicar
  • Women of childbearing age
  • Infants less than one year old
  • History of kidney problems
  • African descent
  • Current kidney problems
  • Using medicines that increase potassium
  • Using salt substitutes
  • Taking with alcohol
  • Taking other medicines that lower your blood pressure
Detailed Atacand (candesartan) risks & warnings »
    • African descent
    • Current kidney problems
    • Medicine that increase potassium
    • Use of salt substitute
      Detailed Benicar (olmesartan) risks & warnings »
      Pregnancy

      Research studies with real people found harmful effects on unborn babies, but the benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

      Research studies with real people found harmful effects on unborn babies, but the benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

      Kidneys and liver
      AtacandBenicar
      • Protects kidney function, which is especially useful for people with diabetes or mild-to-moderate kidney disease.
      • You'll need to have blood tests done regularly since Atacand (candesartan) can affect your kidneys and potassium levels.
      • Atacand (candesartan) can hurt your kidneys. If you already have some degree of kidney damage, Atacand (candesartan) could make it worse. It's important to get blood work done to check your kidney function before starting Atacand (candesartan), and at least once a year while you're still on it.
      • Protects kidney function, which is especially useful for people with diabetes or mild-to-moderate kidney disease.
      • Requires routine blood tests to check kidney function.
      Pain
      AtacandBenicar
      • Atacand (candesartan) can hurt your kidneys. If you already have some degree of kidney damage, Atacand (candesartan) could make it worse. It's important to get blood work done to check your kidney function before starting Atacand (candesartan), and at least once a year while you're still on it.
      No pain related info.
      Weight
      AtacandBenicar
      No weight related info.
      • Benicar (Olmesartan) has been reported to cause severe diarrhea and weight loss unexplained by other causes. Stay hydrated and notify your doctor if you continue to have more than 3-4 loose stools a day.
      Upsides and benefits
      AtacandBenicar
      • Atacand (candesartan) lowers your risk of heart attack and stroke.
      • It works similar to ACE inhibitors (like lisinopril), but it doesn't have the same side effects like coughing and facial swelling.
      • Protects kidney function, which is especially useful for people with diabetes or mild-to-moderate kidney disease.
      • It's recommended for people with heart failure since it lowers the risk of death and further damage to your heart.
      • Can be used in children older than 12 months.
      • A first-choice blood pressure treatment for many people.
      • Lowers the risk of heart attack and stroke.
      • Similar to ACE inhibitors (like Lisinopril), with fewer side effects like cough and swelling.
      • Protects kidney function, which is especially useful for people with diabetes or mild-to-moderate kidney disease.
      • Recommended for anyone with heart failure since it lowers the risk of death and further damage to your heart.
      Downsides and risks
      AtacandBenicar
      • You'll need to get yearly blood tests while taking Atacand (candesartan) to see how it is affecting your body.
      • It's not safe to use Atacand (candesartan) if you're pregnant.
      • Atacand (candesartan) can cause the level of potassium in your blood to go up.
      • You'll need to get medical help if you notice any unusual swelling around your head and neck.
      • Requires a yearly blood test to see how the medicine is affecting your body.
      • Not safe to use if you're pregnant.
      • Not available in less expensive generic form.
      Tips from our pharmacists for people taking the medication
      AtacandBenicar
      • Atacand (candesartan) can make you feel a little dizzy for the first few days.
      • You'll need to have blood tests done regularly since Atacand (candesartan) can affect your kidneys and potassium levels.
      • Don't eat a lot of foods that are high in potassium or use salt substitutes that contain potassium.
      • Tell your doctor about any dizziness or muscle weakness that doesn't go away after the first few days.
      • Don't take Atacand (candesartan) if you're pregnant.
      • Can cause dizziness in the first few days.
      • Check your blood pressure 1 week after starting this medicine, and tell your doctor if it hasn't improved.
      • Tell your doctor about any dizziness, fatigue, cough, or throat irritation that doesn't go away.
      • Requires routine blood tests to check kidney function.
      • Don't take it if you're pregnant.
      Learn more
      More about AtacandSide effectsReviews & ratingsAlternativesFDA package insert
      Have you used Atacand (candesartan)?
      Worth itNot sureNot worth it
      More about BenicarSide effectsReviews & ratingsAlternativesFDA package insert
      Have you used Benicar (olmesartan)?
      Worth itNot sureNot worth it