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 276 ratings on Drugs.com. 63% 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 | |||||||||||||||||
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| 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.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.