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Chlorzoxazone Pregnancy and Breastfeeding Warnings

Medically reviewed by Last updated on Oct 19, 2022.

Chlorzoxazone is also known as: Eze DS, Lorzone, Paraflex, Parafon Forte DSC, Relaxazone, Remular, Remular-S, Strifon Fort

Chlorzoxazone Pregnancy Warnings

There are no controlled data in human pregnancy.

US FDA pregnancy category Not Assigned: The US FDA has amended the pregnancy labeling rule for prescription drug products to require labeling that includes a summary of risk, a discussion of the data supporting that summary, and relevant information to help health care providers make prescribing decisions and counsel women about the use of drugs during pregnancy. Pregnancy categories A, B, C, D, and X are being phased out.

Benefit should outweigh risk

US FDA pregnancy category: Not formally assigned to a pregnancy category

Risk Summary: The safety of this drug has not been determined with respect to the possible adverse effects upon fetal development.

See references

Chlorzoxazone Breastfeeding Warnings

Benefit should outweigh risk

Excreted into human milk: Data not available
Excreted into animal milk: Data not available

-There are no data on the effects of this drug on the breastfed infant or its effects on milk production.
-The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for this drug and any potential adverse effects to the breastfed infant from the drug or from the underlying maternal condition.

See references

References for pregnancy information

  1. "Product Information. Chlorzoxazone (chlorzoxazone)." Actavis U.S. (Amide Pharmaceutical Inc) (2019):

References for breastfeeding information

  1. "Product Information. Chlorzoxazone (chlorzoxazone)." Actavis U.S. (Amide Pharmaceutical Inc) (2019):

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.