Comparing Diltiazem vs Verapamil
| Diltiazem | Verapamil |
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| Diltiazem | Verapamil |
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Prescription only
Diltiazem may be used for the treatment of high blood pressure or chronic stable angina. Rhinitis, headache, and constipation are commonly reported side effects. Prescribed for Atrial Fibrillation... View more |
Prescription only
Verapamil is used to treat angina, arrhythmias, or to lower blood pressure. Constipation is the most common side effect and it may interact with several medicines and grapefruit products. Prescribed... View more |
Related suggestions High Blood Pressure (Hypertension)
Supraventricular Tachycardia
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| More about Diltiazem | More about Verapamil | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Diltiazem has an average rating of 6.0 out of 10 from a total of 189 ratings on Drugs.com. 44% of reviewers reported a positive effect, while 31% reported a negative effect. |
Verapamil has an average rating of 7.6 out of 10 from a total of 183 ratings on Drugs.com. 70% of reviewers reported a positive effect, while 16% reported a negative effect. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||||||||||
View all Diltiazem side effects |
View all Verapamil side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Diltiazem prices |
View all Verapamil prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Cardizem, Cardizem CD, Cardizem LA, Cartia XT, Dilacor XR, Dilt-XR, Diltia XT, Diltiazem Hydrochloride CD, Diltiazem Hydrochloride SR, Diltiazem Hydrochloride XR, Diltzac, Matzim LA, Taztia XT, Tiadylt ER, Tiazac View more | Calan SR, Verelan, Verelan PM | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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6 hours |
12 hours |
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| CSA Schedule 1 View glossary of CSA terms | |||||||||||||||||
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Not a controlled drug
Is not subject to the Controlled Substances Act. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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| Pregnancy Category | |||||||||||||||||
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Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||||||||||
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A total of 710 drugs are known to interact with Diltiazem:
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A total of 661 drugs are known to interact with Verapamil:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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November 05, 1982 |
March 08, 1982 |
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| WADA Class View classifications | |||||||||||||||||
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N/A |
N/A |
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| More Information | |||||||||||||||||
| Patient Resources | |||||||||||||||||
| Professional Resources | |||||||||||||||||
| Related Treatment Guide | |||||||||||||||||
1 The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.