Compare Calan vs. Diovan

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

Calan
(verapamil)

Diovan
(valsartan)

Lowers blood pressure and controls heart rate. Verapamil works well to lower blood pressure and prevent chest pain, but you have to be okay with avoiding alcohol. You can't miss doses, and you might get persistent swelling.Lowers blood pressure. Diovan (Valsartan) is a good blood pressure-lowering medicine that protects kidney function like an ACE inhibitor, but with fewer side effects.
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Coupons for Calan
Best available price for 60 (120mg) tablets of verapamil
Coupons for Diovan
Best available price for 30 (160mg) tablets of diovan
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
3.84Calan
Reviews for Calan
35%
of people (All ages) say Calan is worth it
33%
say it works well
21%
say it's a big hassle
Have you used Calan (verapamil)?
Worth itNot sureNot worth it
Reviews for Diovan
65%
-30% worse vs. Calan
54%
-21% worse vs. Calan
15%
-6% worse vs. Calan
431 reviews
Have you used Diovan (valsartan)?
Worth itNot sureNot worth it
Side effects
CalanDiovan
  • Constipation 7%
  • Dizziness 3%
  • Nausea 3%
  • Low blood pressure 3%
  • Headache 2%
  • Swelling due to excess fluid 2%
  • Chf and pulmonary edema 2%
  • Fatigue 2%
  • Lack of energy 3%
  • Indigestion 3%
More Calan side effects »
  • Cough 1%
  • Viral infection 1%
  • Fatigue 1%
  • Abdominal pain 1%
  • Dizziness 8%
  • Low blood pressure 5%
  • Diarrhea 1%
  • Joint pain 1%
  • Back pain 1%
  • Dizziness, postural 1%
More Diovan side effects »
How it works
CalanDiovan
Verapamil is a calcium channel blocker. It lowers blood pressure by slowing your heart rate and relaxing your blood vessels. Your heart gets more oxygen and doesn't have to work as hard to pump, which can relieve chest pain.Diovan (Valsartan) 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
CalanDiovan
Prescription onlyPrescription only
Available as
CalanDiovan
  • Pill
  • Extended release
  • Delayed release capsule
  • Pill
Used for
CalanDiovan
Risk factors for serious side effects
CalanDiovan
  • Severe left ventricular dysfunction (ejection fraction <30%)
  • Taking beta-blockers
  • History of liver disease
  • History of kidney disease
Detailed Calan (verapamil) risks & warnings »
  • Women of childbearing age
  • African descent
  • Current kidney problems
  • Medicine that increase potassium
  • Use of salt substitute
Detailed Diovan (valsartan) risks & warnings »
Pregnancy

Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. 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.

Interactions
CalanDiovan
  • Interacts with grapefruit and the cholesterol medicine Simvastatin.
No interactions related info.
Alcohol
CalanDiovan
  • Don't drink too much alcohol while taking this medicine.
  • Not a good medication for you if you drink alcohol.
No alcohol related info.
Kidneys and liver
CalanDiovan
  • Your doctor may check your liver regularly, as there have been reports of liver damage which can only be seen through blood tests. If you do have a history of liver disease, let your doctor know.
  • Your doctor may monitor your heart to see if changes to its electrical system may occur, especially if you have had liver or kidney disease in the past.
  • Requires routine blood tests to check kidney function.
  • Protects kidney function, which is especially useful for people with diabetes or mild-to-moderate kidney disease.
Upsides and benefits
CalanDiovan
  • A first-choice blood pressure treatment for many people.
  • Calcium channel blockers work especially well for African Americans to lower blood pressure.
  • You can take it alone or with other medicines to help lower blood pressure.
  • Lowers the risk of heart attack and stroke.
  • Prevents heart-related chest pain (angina) if you take it regularly.
  • Treats certain abnormal heart rhythms.
  • 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
CalanDiovan
  • Calcium channel blockers can cause swelling in your limbs. If this happens for you, it probably won't get better over time, so talk to your doctor about alternatives if it bothers you.
  • Women are more likely to have side effects (especially swelling) from Verapamil than men.
  • You can't miss doses. Stopping Verapamil suddenly can cause your blood pressure to go up suddenly, which raises the risk of heart attack and stroke.
  • Not a good medication for you if you drink alcohol.
  • Requires a yearly blood test to see how the medicine is affecting your body.
  • Not safe to use if you're pregnant.
Tips from our pharmacists for people taking the medication
CalanDiovan
  • Check your blood pressure 1 week after starting this medicine, and tell your doctor if it hasn't improved.
  • Interacts with grapefruit and the cholesterol medicine Simvastatin.
  • Can cause constipation and headache.
  • Don't drink too much alcohol while taking this medicine.
  • Your doctor might do routine blood tests to check your liver function.
  • 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 CalanSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Calan (verapamil)?
Worth itNot sureNot worth it
More about DiovanSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Diovan (valsartan)?
Worth itNot sureNot worth it