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Also indexed as: Betagan, Brevibloc®, Carteolol,
Cartrol®, Esmolol, Levatol®, Levobunolol, Metipranolol, Nebivolol, Ocupress®,
OptiPranolol, Oxprenolol, Penbutolol, Pindolol, Visken®
Oral forms
Ophthalmic forms
- Betaxolol (Betoptic®)
- Carteolol (Ocupress®)
- Levobunolol (Betagan®)
- Metipranolol (OptiPranolol®)
- Timolol (Timoptic®)
Summary of
Interactions with Vitamins, Herbs, and Foods
(for details about the summarized interactions, read the full article)
 Avoid: Adverse interaction—Avoid these supplements
when taking this medication because taking them together may cause undesirable or dangerous
results. |
High-potassium foods
Pleurisy root
Potassium supplements
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| Depletion or interference |
None known
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| Side effect reduction/prevention |
None known
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| Supportive interaction |
None known
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| Reduced drug
absorption/bioavailability |
None known
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| Interactions common to many, if not all,
Beta-Adrenergic Blockers are described in this article. Interactions reported for only one or
several drugs in this class may not be listed in this article. Some drugs listed in this
article are linked to articles specific to that respective drug; please refer to those
individual drug articles. The information in this article may not necessarily apply to drugs
in this class for which no separate article exists. If you are taking a Beta-Adrenergic
Blocker for which no separate article exists, talk with your doctor or pharmacist. |
An asterisk (*) next to an item in the summary indicates that the
interaction is supported only by weak, fragmentary, and/or contradictory scientific
evidence.
Interactions with Dietary Supplements
Potassium
Some beta-adrenergic blockers (called “nonselective” beta blockers) decrease the
uptake of potassium from the blood into the cells,1 leading to excess potassium in
the blood, a potentially dangerous condition known as hyperkalemia.2 People taking
beta-blockers should therefore avoid taking potassium supplements, or eating large quantities
of fruit (e.g.,
bananas), unless directed to do so by their doctor.
Interactions with Herbs
Pleurisy root
As pleurisy root and other plants in the Aesclepius genus contain cardiac glycosides,
it is best to avoid use of pleurisy root with heart medications such as
beta-blockers.3
References
1. Rosa RM, Silva P, Young JB, et al. Adrenergic modulation of extrarenal
potassium disposal. N Engl J Med 1980;302:431–4.
2. Lundborg P. The effect of adrenergic blockade on potassium
concentrations in different conditions. Acta Med Scand Suppl 1983;672:121–6
[review].
3. Newall CA, Anderson LA, Phillipson JD. Herbal Medicines: A Guide
for Health-Care Professionals. London: Pharmaceutical Press, 1996, 213–4.
Copyright © 2004 Healthnotes, Inc. All rights reserved.
www.healthnotes.com
Please read the disclaimer
about the limitations of the information provided here. Do NOT rely solely on the information
in this article.
Learn more about Healthnotes, the company.
Learn more about the authors of Using
Medicines with Vitamins and Herbs
The information presented in Healthnotes is for informational
purposes only. It is based on scientific studies (human, animal, or in vitro),
clinical experience, or traditional usage as cited in each article. The results reported may
not necessarily occur in all individuals. For many of the conditions discussed, treatment with
prescription or over-the-counter medication is also available. Consult your doctor,
practitioner, and/or pharmacist for any health problem and before using any supplements or
before making any changes in prescribed medications. Information expires March 2005.
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