Parsley - Librax (Chlordiazepoxide, Clidinium Bromide) Interaction
Herbal: Parsley
Also Known As: Petroselinum crispum, Common Parsley, Garden Parsley, Hamburg Parsley, Parsley Fruit, Parsley Oil, Parsley Seed, Perejil, Persely, Persil, Persil Cultivé, Persil Plat, Persin, Petersylinge, Petroselini Herba, Petrosilini Radix, Prajmoda, Racine de Persil, Rock Parsley
Drug: Chlordiazepoxide, Clidinium Bromide
Brand names:
Librax

Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 18, 2025
Interaction Details
Chlordiazepoxide, Clidinium Bromide is classified as belonging to the following category: Cytochrome P450 1A2 (Cyp1A2) Substrates
Theoretically, parsley might increase serum levels of CYP1A2 substrates.
Laboratory research suggests that parsley can inhibit CYP1A2.
Interaction Rating
Likelihood of Occurrence
PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
References
- Peterson, S., Lampe, J. W., Bammler, T. K., Gross-Steinmeyer, K., and Eaton, D. L. Apiaceous vegetable constituents inhibit human cytochrome P-450 1A2 (hCYP1A2) activity and hCYP1A2-mediated mutagenicity of aflatoxin B1. Food Chem.Toxicol. 2006;44(9):147
Parsley Overview

Chlordiazepoxide, Clidinium Bromide Overview
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The combination of chlordiazepoxide and clidinium is used along with other medications to treat peptic ulcers, irritable bowel syndrome (IBS; a condition that causes stomach pain, bloating, constipation, and diarrhea), and enterocolitis (swelling in the intestines). Chlordiazepoxide is in a class of medications called benzodiazepines. It works by decreasing abnormal electrical activity in the brain. Clidinium is in a class of medications called anticholinergics. It helps to decrease stomach spasms and cramps.
Parsley - More Interactions
Parsley interacts with 439 drugs
Interaction Rating Key
These severity listings are for informational use only. Never start, stop or otherwise change your therapy before speaking with your provider.
Major | The combined use of these agents is strongly discouraged as serious side effects or other negative outcomes could occur. |
Moderate | Use cautiously under the care of a healthcare professional or avoid this combination. A significant interaction or negative outcome could occur. |
Minor | Be aware that there is a chance of an interaction. Watch for warning signs of a potential interaction. |
Unknown | No interactions have been reported or no interaction data is currently available. |
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Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
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Drug descriptions are provided by MedlinePlus.