Herb & supplement monograph

Hound's Tongue Drug Interactions, Uses, Safety & More

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS ·Updated July 2026

What is this page for?

First and foremost: how Hound's Tongue interacts with medications. The heart of this page is the interaction list — every drug Hound's Tongue is known to interact with, and how serious each one is.

But these pages have grown well beyond that into a full monograph — what Hound's Tongue is, what people use it for and how strong the evidence is, its safety and side effects, and answers to the questions we’re asked most — written and reviewed by the clinical staff at HelloPharmacist. It’s educational information from our licensed clinical databases, not medical advice, and we don’t sell or endorse products. Our editorial policy

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Hound's Tongue Drug Interactions: The Bottom Line

From the HelloPharmacist Editorial Team · Updated July 2026

Based on the available evidence, the overall risk of a clinically significant Hound's Tongue drug interaction appears low for most people, although the concern behind its listed interactions involves liver safety. None of the interactions are rated major, and all of them rest on the same theoretical concern rather than documented effects in people.

Interactions deserving the most attention

The one group that stands out is CYP3A4 inducers, medications that speed up a liver enzyme the body uses to process many drugs. Hound's Tongue naturally contains pyrrolizidine alkaloids, compounds that this enzyme can convert into byproducts harmful to the liver. In theory, taking an enzyme-inducing medication could increase that conversion and raise the chance of liver injury. This has been suggested by how these compounds are processed, not confirmed in human studies, but because the potential harm involves the liver, we take it seriously.

What the rest of the list means

The long list of interacting medications reflects a single shared mechanism, not dozens of separate proven problems. Every entry traces back to the same theoretical enzyme effect, and none has been shown to cause meaningful harm in people so far. Still, the plant's natural alkaloids are the real reason for caution here, more than any one drug pairing.

Check your medications against Hound's Tongue

Based on HelloPharmacist’s Hound's Tongue interaction data and reviewed under our editorial standards.

Interaction report

Drugs that interact with Hound's Tongue

87 medications have a known interaction with Hound's Tongue, graded by severity. Select any drug for the full evidence-based detail.

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Tell us the medications you take and we’ll check each one against Hound's Tongue using our pharmacist-reviewed interaction data.

AI summaries are generated from our Hound's Tongue interaction data for education only — always confirm with your pharmacist. How we use AI

2,830 drugs

AminoglutethimideCytadren

Moderate Cytochrome P450 3a4 (cyp3a4) Inducers