Comparing Atenolol vs Clonidine
| Atenolol | Clonidine |
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| Atenolol | Clonidine |
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Prescription only
Atenolol works on heart-specific receptors to lower blood pressure and slow heart rate; however, this selective effect on the heart may be lost with dosages greater than 50mg/day which increases the... View more |
Prescription only
Clonidine can be used to lower blood pressure and extended-release forms are used to treat ADHD; however, it causes sedation, and tolerance can develop to its blood pressure-lowering effects... View more |
Related suggestions High Blood Pressure (Hypertension)
Migraine Prevention (Migraine Prophylaxis)
Alcohol Withdrawal
Popular comparisons
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| More about Atenolol | More about Clonidine | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Atenolol has an average rating of 7.2 out of 10 from a total of 277 ratings on Drugs.com. 64% of reviewers reported a positive effect, while 18% reported a negative effect. |
Clonidine has an average rating of 7.2 out of 10 from a total of 775 ratings on Drugs.com. 61% of reviewers reported a positive effect, while 21% 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 Atenolol side effects |
View all Clonidine 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 Atenolol prices |
View all Clonidine prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Tenormin | Catapres, Catapres-TTS, Clonidine ER, Duraclon, Kapvay, Nexiclon XR, Onyda XR | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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6.2 hours |
15 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 D
Positive evidence of risk
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 477 drugs are known to interact with Atenolol:
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A total of 375 drugs are known to interact with Clonidine:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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August 19, 1981 |
September 03, 1974 |
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| WADA Class View classifications | |||||||||||||||||
| More Information | |||||||||||||||||
| Patient Resources | |||||||||||||||||
| Professional Resources | |||||||||||||||||
| Related Treatment Guide | |||||||||||||||||
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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.