Compare Diltiazem vs. Diovan

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

Cardizem (Diltiazem)

Prescription only

Diovan (Valsartan)

Prescription only
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.

3.5/ 5 average rating with 105 reviewsforDiltiazem
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.

3.8/ 5 average rating with 431 reviewsforDiovan
Upsides
  • 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
  • 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.
Used for
Dosage forms
  • Pill
  • Extended release
  • Extended release capsule
  • Pill
Price
No pricing information available
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Reviews
105 reviews so far
52%
saidit'sworth it
49%
saiditworked well
16%
saidit'sa big hassle

Have you used Cardizem (Diltiazem)?

Leave a review
431 reviews so far
65%
saidit'sworth it
54%
saiditworked well
15%
saidit'sa big hassle

Have you used Diovan (Valsartan)?

Leave a review
Side effects
6possible side effects
  • Edema
    5%
  • Headache
    5%
  • Dizziness
    4%
  • Asthenia
    3%
  • First degree AV block
    2%
  • Bradycardia
    2%
See more detailed side effects
The Diovan (Valsartan) FDA package insert doesn’t have numbers about how common side effects are.
Risks and risk factors
  • Skin rashes
  • Abnormally slow heart rate
    • Taking digoxin or beta-blockers at the same time
  • Sudden liver disease
    • History of liver disease
See more detailed risks and warnings
  • Harm to fetus
    • Women of childbearing age
  • Unusual tongue swelling
    • African descent
  • Heart problems due to high potassium
    • Current kidney problems
    • Medicine that increase potassium
    • Use of salt substitute
See more detailed risks and warnings