Chlorzoxazone | Health Notes at WWSM | Health Information at WWSM

Chlorzoxazone

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Also indexed as: Paraflex, Parafon Forte DSC, Strifon

Chlorzoxazone is used to treat acute painful muscle conditions. It is a type of drug called a centrally acting skeletal muscle relaxant.

Summary of Interactions with Vitamins, Herbs, and Foods
In some cases, a herb or supplement may appear in more than one category, which may seem contradictory. For clarification, read the full article for details about the summarized interactions.

Avoid: Reduced drug absorption/bioavailability—Avoid these supplements when taking this medication since the supplement may decrease the absorption and/or activity of the medication in the body.	Broccoli Brussel sprouts Chinese cabbage Garlic Tea Watercress
Avoid: Adverse interaction—Avoid these supplements when taking this medication because taking them together may cause undesirable or dangerous results.	Alcohol Caffeine*
Depletion or interference	None known
Side effect reduction/prevention	None known
Supportive interaction	None known

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 Foods and Other Compounds

Food
Test tube studies show that watercress, garlic, tea, and cruciferous vegetables, such as Brussel sprouts, broccoli, and Chinese cabbage, block the breakdown of chlorzoxazone into inactive compounds.¹ ² Controlled human research is needed to determine whether these interactions are important in people taking chlorzoxazone.

Alcohol
Drinking alcoholic drinks while taking chlorzoxazone may enhance side effects of the drug, such as drowsiness, dizziness, and light-headedness.³ In addition, test tube studies show that alcohol might increase the elimination of chlorzoxazone from the body.⁴ Consequently, people who are taking chlorzoxazone should avoid drinking alcohol.

Smoking
Studies show that cigarette smoking increases the elimination of chlorzoxazone from the body.⁵ Problems could occur if people either start or stop smoking while taking chlorzoxazone: individuals who stop smoking may experience increased side effects, while those who start smoking may notice that the drug is less effective.

Caffeine
Controlled studies show that chlorzoxazone reduces the elimination of caffeine from the body,⁶ which could cause side effects of caffeine, such as restlessness and insomnia. If side effects occur, some individuals may need to avoid caffeinated drinks, such as coffee and tea, while taking chlorzoxazone.

References
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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 chemist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires September 2008.

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Interactions with Foods and Other Compounds