Lavender - Ephedrine, Guaifenesin, Phenobarbital, Theophylline Interaction
Herbal: Lavender
Also Known As: Lavandula angustifolia, Alhucema, Common Lavender, English Lavender, French Lavender, Garden Lavender, Lavanda, Lavande, Lavande Commune, Lavande des Alpes, Lavande du Jardin, Lavande Fine, Lavande Française, Lavande Officinale, Lavande Vraie, Lavandula, Spanish Lavender
Drug: Ephedrine, Guaifenesin, Phenobarbital, Theophylline
Brand names:
Mudrane GG
Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
Jul 22, 2023
Interaction Details
Ephedrine, Guaifenesin, Phenobarbital, Theophylline is classified as belonging to the following category: Cns Depressants
Theoretically, lavender might potentiate the therapeutic effects and adverse effects of CNS depressants.
Laboratory research suggests that lavender has sedative effects. However, clinical studies in patients taking oral lavender oil (Silexan) 160 mg for 10 weeks or taking lavender flower powder 1 gram daily for 2 months have not reported side effects of drowsiness, sedation, or sleepiness. There is still some concern that higher doses or different preparations of lavender might have additive effects with CNS depressant medications.
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
- Schulz V, Hansel R, Tyler VE. Rational Phytotherapy: A Physician's Guide to Herbal Medicine. Terry C. Telger, transl. 3rd ed. Berlin, GER: Springer, 1998.
- Farshbaf-Khalili A, Kamalifard M, Namadian M. Comparison of the effect of lavender and bitter orange on anxiety in postmenopausal women: A triple-blind, randomized, controlled clinical trial. Complement Ther Clin Pract 2018;31:132-8.
- Donelli D, Antonelli M, Bellinazzi C, Gensini GF, Firenzuoli F. Effects of lavender on anxiety: A systematic review and meta-analysis. Phytomedicine. 2019;65:153099.
Lavender Overview
Lavender is a perennial herb native to the Mediterranean region that has been used for centuries for its aroma in commercial products, as well as in herbal medicine and aromatherapy. It has a sweet, floral aroma and is often used to promote relaxation and relieve stress.
In traditional medicine, lavender has been mainly used for its purported anxiolytic (anxiety-reducing) effects. Lavender essential oil has also been purported to have antibacterial, antifungal, and antiviral properties and may be helpful in the treatment of certain skin conditions, such as acne and dandruff.
Lavender - More Interactions
Lavender interacts with 247 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. |
Return to the main herbal interaction checker page
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.
© 2021 Therapeutic Research Center, LLC
Drug descriptions are provided by MedlinePlus.
Ask A Pharmacist About Your Herbal Questions!
Dr. Brian Staiger, PharmD
In addition to being a clinical pharmacist specializing in pharmacotherapy, Dr. Brian Staiger is a registered herbalist through the American Herbalist Guild. He has combined his passion for pharmacy practice with the study of medical ethnobotany to improve patient care. Feel free to reach out about any of your herbal or medication questions!
Ask A Pharmacist