Compare Diltiazem vs. Diovan

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

Cardizem
(Diltiazem)

Diovan
(Valsartan)

Lowers blood pressure and controls heart rate. Diltiazem 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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Reviews & ratings
Button Group. All currently active
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4.757575757575758Diltiazem
Reviews for Cardizem (Diltiazem)
53%
of people say Cardizem (Diltiazem) is worth it
48%
say it works well
16%
say it's a big hassle
Reviews for Diovan (Valsartan)
65%
+12% vs. Cardizem (Diltiazem)
54%
+6% vs. Cardizem (Diltiazem)
15%
+1% vs. Cardizem (Diltiazem)
Side effects
DiltiazemDiovan
  • Abnormally slow heartbeat 2%
More Diltiazem side effects »
  • Dizziness 8%
  • Low blood pressure 5%
  • Diarrhea 1%
  • High blood potassium 1%
  • Dizziness, postural 1%
  • Abdominal pain 1%
  • Positional low blood pressuren, postural 1%
  • Cough 1%
  • Back pain 1%
  • Joint pain 1%
More Diovan side effects »
How it works
DiltiazemDiovan
Diltiazem 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
DiltiazemDiovan
Antihypertensive
Calcium channel blocker
Prescription only
Antihypertensive
Angiotensin receptor blocker
Prescription only
Available as
DiltiazemDiovan
  • Pill
  • Extended release
  • Extended release capsule
  • Pill
Used for (click to learn more)
DiltiazemDiovan
Risk factors for serious side effects
DiltiazemDiovan
    • Taking digoxin or beta-blockers at the same time
    • History of liver disease
    Detailed Cardizem (Diltiazem) 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 category
    DiltiazemDiovan
    CFDA pregnancy category (Weigh risks vs. benefits)

    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.

    See the FDA package insert
    DFDA pregnancy category (Weigh risks vs. benefits)

    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.

    See the FDA package insert
    Alcohol
    • Not a good medication for you if you drink alcohol.
    No specific alcohol-related info.
    Food
    • Some brands of Diltiazem have to be taken with food, so listen carefully for instructions from your doctor or pharmacist.
    No specific food-related info.
    Kidneys and liver
    No specific kidneys and liver-related info.
    • 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.
    Sex
    No specific sex-related info.No specific sex-related info.
    Sleep
    No specific sleep-related info.No specific sleep-related info.
    Weight
    No specific weight-related info.No specific weight-related info.
    Upsides and benefits
    DiltiazemDiovan
    • 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.
    • 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.
    • A first-choice blood pressure treatment for many people.
    • Lowers the risk of heart attack and stroke.
    Downsides and risks
    DiltiazemDiovan
    • 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 Diltiazem than men.
    • You can't miss doses. Stopping Diltiazem suddenly can cause your blood pressure to go up suddenly, which raises the risk of heart attack and stroke.
    • Some brands of Diltiazem have to be taken with food, so listen carefully for instructions from your doctor or pharmacist.
    • 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
    DiltiazemDiovan
    • Can cause dizziness or fatigue in the first few days.
    • Interacts with the cholesterol medicine Simvastatin.
    • Can cause ankle or foot swelling.
    • Can cause gum overgrowth. Ask your dentist to check for this side effect.
    • Check your blood pressure 1 week after starting this medicine, and tell your doctor if it hasn't improved.
    • Can cause dizziness in the first few days.
    • 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.
    • Check your blood pressure 1 week after starting this medicine, and tell your doctor if it hasn't improved.
    Learn more
    More about DiltiazemSide effectsReviews & ratingsAlternativesFDA package insert
    More about DiovanSide effectsReviews & ratingsAlternativesFDA package insert