Comparing Norvasc vs Prazosin
| Norvasc (amlodipine) | Prazosin |
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| Norvasc (amlodipine) | Prazosin |
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Prescription only
Norvasc may be used to treat angina or high blood pressure, but may cause edema (fluid retention) in the lower legs, ankles, or feet. Prescribed for High Blood Pressure, Coronary Artery Disease... View more |
Prescription only
Prazosin effectively treats high blood pressure but commonly causes dizziness or lightheadedness on initiation or with a dosage increase. However, a tolerance to this effect develops on continued... View more |
Related suggestions High Blood Pressure (Hypertension)
Popular comparisons
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| More about Norvasc (amlodipine) | More about Prazosin | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Norvasc has an average rating of 4.6 out of 10 from a total of 105 ratings on Drugs.com. 27% of reviewers reported a positive effect, while 49% reported a negative effect. |
Prazosin has an average rating of 6.9 out of 10 from a total of 279 ratings on Drugs.com. 60% of reviewers reported a positive effect, while 25% reported a negative effect. |
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| Drug Class | |||||||||||||||||
| Side Effects | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Norvasc prices |
View all Prazosin prices |
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| Dosage Forms Available | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Other amlodipine brands include: Katerzia, Norliqva | Minipress | ||||||||||||||||
| Half Life The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value. | |||||||||||||||||
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35 hours |
4 hours |
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| CSA Schedule ** View glossary of 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 531 drugs are known to interact with Norvasc:
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A total of 270 drugs are known to interact with Prazosin:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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July 31, 1992 |
June 23, 1976 |
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| WADA Class View World Anti-Doping Agency classifications. | |||||||||||||||||
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N/A |
N/A |
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| More Information | |||||||||||||||||
| Patient resources | |||||||||||||||||
| Professional Resources | |||||||||||||||||
| Related Treatment Guide | |||||||||||||||||
** 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.