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CHLORPHENIRAMINE
Chlorpheniramine is an antihistamine used to relieve allergic rhinitis (seasonal allergy) symptoms including sneezing, runny nose, itching, and watery eyes. It is also used to treat immediate allergic reactions. Chlorpheniramine is available in nonprescription products alone and in combination with other nonprescription drugs, to treat symptoms of allergy, colds, and upper respiratory infections.
Safetychecker Summary
for Chlorpheniramine
(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. |
Henbane* |
| Depletion or interference |
None known |
| Side effect reduction/prevention |
None known |
| Supportive interaction |
None known |
| Reduced drug absorption/bioavailability |
None known |
Interactions with Herbs
Henbane (Hyoscyamus niger)
Antihistamines, including chlorpheniramine, can cause “anticholinergic” side
effects such as dryness of mouth and heart palpitations. Henbane also has anticholinergic
activity and side effects. Therefore, use of henbane with chlorpheniramine could increase the
risk of anticholinergic side effects,1 though apparently no interactions have yet
been reported. Henbane should not be taken except by prescription from a physician trained in
its use, as it is extremely toxic.
Interactions with Foods and Other Compounds
Alcohol
Chlorpheniramine causes drowsiness.2 Alcohol may intensify this effect and increase
the risk of accidental injury.3 To prevent problems, people taking chlorpheniramine
or chlorpheniramine-containing products should avoid alcohol.
References:
1. Blumenthal M, ed. The Complete German Commission E Monographs. Austin, TX: American Botanical Council, 1998, 146.
2. Threlkeld DS, ed. Respiratory Drugs, Antihistamines. In Facts and Comparisons Drug Information. St. Louis, MO: Facts and Comparisons, May 1998, 192.
3. Threlkeld DS, ed. Respiratory Drugs, Antihistamines. In Facts and Comparisons Drug Information. St. Louis, MO: Facts and Comparisons, May 1998, 192.
Copyright © 2002 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 Safetychecker.
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 December 2003.
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