Comparing Atenolol vs Metoprolol Succinate ER
| Atenolol | Metoprolol Succinate ER (metoprolol) |
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| Atenolol | Metoprolol Succinate ER (metoprolol) |
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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
Metoprolol succinate ER is a selective beta-blocker that is used to lower blood pressure or relieve symptoms of angina in people with heart disease. It may also be used in the treatment of certain... View more |
Related suggestions High Blood Pressure (Hypertension)
Heart Attack (Myocardial Infarction)
Angina Pectoris Prophylaxis
Popular comparisons
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| More about Atenolol | More about (metoprolol) | ||||||||||||||||
| 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. |
Metoprolol Succinate ER has an average rating of 5.7 out of 10 from a total of 95 ratings on Drugs.com. 43% of reviewers reported a positive effect, while 37% 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 Metoprolol Succinate ER side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
Lower cost generic approved | ||||||||||||||||
| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Atenolol prices |
View all Metoprolol Succinate ER prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Tenormin | Other metoprolol brands include: Kapspargo Sprinkle, Lopressor, Metoprolol Tartrate, Toprol-XL | ||||||||||||||||
| 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 |
4 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 544 drugs are known to interact with Metoprolol Succinate ER:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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August 19, 1981 |
N/A |
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| WADA Class View classifications | |||||||||||||||||
| More Information | |||||||||||||||||
| Patient Resources | |||||||||||||||||
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N/A |
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| Professional Resources | |||||||||||||||||
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N/A |
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| 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.