Marsh Labrador Tea - Gabitril (Tiagabine) Interaction
Herbal: Marsh Labrador Tea
Also Known As: Rhododendron tomentosum, James' Tea, Lède des Marais, Ledi Palustris Herba, Lédon des Marais, Ledum Silvestre, Marsh Citrus, Moth Herb, Northern Labrador Tea, Petit Thé du Labrador, Romarin Sauvage, Romero Silvestre, Sumpfporst, Swamp Tea, Te de Los Pantanos, Wild Rosem
Drug: Tiagabine
Brand names:
Gabitril
Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
Jun 15, 2025
Interaction Details
Tiagabine is classified as belonging to the following category: Cns Depressants
Marsh Labrador tea can potentiate effects of barbiturates and alcohol.
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
- Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
Marsh Labrador Tea Overview
Marsh Labrador tea (Rhododendron tomentosum) is a shrub that is native to North America and a member of the heath family (Ericaceae). The shrub has small, white or pink flowers that bloom in the spring, and small, green berries that turn black when ripe.
It contains the word 'marsh' in its name as it is often seen growing in nutrient-poor, acidic soils of bogs and swamps.
Marsh Labrador tea has been used most commonly in traditional medicine as a natural remedy for colds and respiratory problems. The leaves and twigs of the plant are used to make a tea that is believed to have astringent, expectorant, and diuretic properties.
It has also been used for stimulating milk flow, as well as topically to relieve e swelling, ulcers, burns and stings.
It is important to use caution when consuming Marsh Labrador tea as it contains very small amounts of a toxic substance known as andromedotoxin, which can cause vomiting, diarrhea, and difficulty breathing if ingested in large amounts.
Tiagabine Overview
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Tiagabine is used in combination with other medications to treat partial seizures (a type of epilepsy). Tiagabine is in a class of medications called anticonvulsants. It is not known exactly how tiagabine works, but it increases the amount of natural chemicals in the brain that prevent seizure activity.
Marsh Labrador Tea - More Interactions
Marsh Labrador Tea 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. |
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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.
© 2021 Therapeutic Research Center, LLC
Drug descriptions are provided by MedlinePlus.
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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!
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