Marsh Labrador Tea - Tolvaptan 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: Tolvaptan
Brand names:
Samsca, Jynarque
Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
Apr 13, 2024
Interaction Details
There were no interactions found between Tolvaptan and Marsh Labrador Tea. This does not mean the potential for an interaction does not exist, however. There is often a lack of studies and data surrounding traditional medicine, especially concerning drug interactions, so it is important to always consult your provider before making any changes to your medication regimen.
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.
Tolvaptan Overview
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Tolvaptan (Jynarque) is used to slow the worsening of kidney function in certain patients with autosomal dominant polycystic kidney disease (ADPKD; a certain type of inherited kidney disease). Tolvaptan (Jynarque) is in a class of medications called vasopressin V2 receptor antagonists. It works by increasing the amount of water released from the body as urine and decreases the growth of cysts in the kidneys. Removing fluid from the body and slowing the growth of cysts helps to slow the worsening of kidney function.
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Tolvaptan is also available as a tablet (Samsca) to treat low blood levels of sodium in people who have heart failure or certain other conditions. This monograph only gives information about tolvaptan tablets (Jynarque) to slow the worsening of kidney function in patients with ADPKD. If you are using this medication to treat low levels of sodium in the blood, read the monograph entitled tolvaptan (low blood sodium).
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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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!
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