Drug interactions
Atenolol + Sodium bicarbonate
Severity: Minor
Atenolol and Sodium bicarbonate: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Oral antacids such as sodium bicarbonate may modestly reduce the absorption of atenolol. This could weaken its heart rate and blood pressure control, but the effect is usually small.
What this interaction means in plain words
Atenolol and Sodium bicarbonate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Atenolol belongs to Cardiovascular; Sodium bicarbonate belongs to Gastrointestinal Tract.
Why it happens
Reduced gastrointestinal absorption of atenolol, possibly through changes in gastric pH.
What to do
Give atenolol at least 2 hours apart from oral sodium bicarbonate. Monitor heart rate and blood pressure if the two are used regularly.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Atenolol
- Amifostine + Atenolol Major
- Amiodarone + Atenolol Major
- Atenolol + Atenolol-chlorthalidone Major
- Atenolol + Betaxolol Major
- Atenolol + Bisoprolol Major
- Atenolol + Carvedilol Major
Other interactions of Sodium bicarbonate
- Acetylsalicylic acid + Sodium bicarbonate Moderate
- Alendronate + Sodium bicarbonate Moderate
- Amantadine + Sodium bicarbonate Moderate
- Carbonyl iron + Sodium bicarbonate Moderate
- Cefditoren + Sodium bicarbonate Moderate
- Cefpodoxime + Sodium bicarbonate Moderate
Frequently asked questions
Can I take Atenolol with Sodium bicarbonate?
MediHelp rates the interaction as minor. Atenolol and Sodium bicarbonate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Oral antacids such as sodium bicarbonate may modestly reduce the absorption of atenolol. This could weaken its heart rate and blood pressure control, but the effect is usually small.
How serious is the interaction between Atenolol and Sodium bicarbonate?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give atenolol at least 2 hours apart from oral sodium bicarbonate. Monitor heart rate and blood pressure if the two are used regularly.
What other medicines interact with Atenolol?
MediHelp also lists interactions of Atenolol with, for example, Amifostine, Amiodarone, Atenolol-chlorthalidone. The full list is on the Atenolol page.
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