Sweet Woodruff - Aspirin, Butalbital, Caffeine, Codeine Phosphate Interaction
Herbal: Sweet Woodruff
Also Known As: Galium odoratum, Aspérula, Aspérule, Aspérule Odorante, Galii Odorati Herba, Master of the Wood, Petit Muguet, Reine des Bois, Thé Suisse, Waldmeister, Woodruff, Wordward
Drug: Aspirin, Butalbital, Caffeine, Codeine Phosphate
Brand names:
Fiorinal w/ Codeine

Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 04, 2025
Interaction Details
Aspirin, Butalbital, Caffeine, Codeine Phosphate is classified as belonging to the following category: Anticoagulant/Antiplatelet Drugs
Theoretically, concomitant use might increase the effects of some anticoagulant and antiplatelet drugs and increase the risk of bleeding.
Sweet woodruff contains coumarin and coumarin derivatives. However, the levels of coumarin found in sweet woodruff are so low that clinically relevant effects are doubtful. Until more is known, use with caution.
Interaction Rating
Likelihood of Occurrence
UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
References
- Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
- Sulma, T. and Wierzchowska, K. [Studies on the content of coumarin in the herbs of the woodruff (Herba Asperulae odoratae) throughout the vegetative period of the plant.]. Acta Pol.Pharm 1963;20:77-82.
- Kovac-Besovic, E. E. and Duric, K. Thin layer chromatography-application in qualitative analysis on presence of coumarins and flavonoids in plant material. Bosn.J Basic Med.Sci. 2003;3(3):19-26.
- Kahkeshani N, Farahanikia B, Mahdaviani P, et al. Antioxidant and burn healing potential of Galium odoratum extracts. Res Pharm Sci 2013;8(3):197-203.
Sweet Woodruff Overview

Sweet Woodruff - More Interactions
Sweet Woodruff interacts with 121 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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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.