Comparing Prazosin vs Tamsulosin
| Prazosin | Tamsulosin |
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| Prazosin | Tamsulosin |
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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 |
Prescription only
Tamsulosin improves the symptoms of BPH such as urine flow, hesitancy, and incomplete bladder emptying, but may cause a drop in blood pressure when going from a sitting to a standing position, which... View more |
Related suggestions Popular comparisons
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| More about Prazosin | More about Tamsulosin | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Prazosin has an average rating of 6.9 out of 10 from a total of 281 ratings on Drugs.com. 60% of reviewers reported a positive effect, while 24% reported a negative effect. |
Tamsulosin has an average rating of 5.8 out of 10 from a total of 561 ratings on Drugs.com. 39% of reviewers reported a positive effect, while 32% 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 Prazosin side effects |
View all Tamsulosin 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 Prazosin prices |
View all Tamsulosin prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Minipress | Flomax | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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4 hours |
19 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 B
No proven risk in humans
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||||||||||
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A total of 274 drugs are known to interact with Prazosin:
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A total of 311 drugs are known to interact with Tamsulosin:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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June 23, 1976 |
April 15, 1997 |
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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.
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.