Skullcap
5 foods contain this ingredient
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About Skullcap
Skullcap is a flowering herb whose leaf and root extracts are added to calming or joint blends for dogs and cats.
Skullcap is an herbal botanical sometimes included in calming or joint‑support supplements for dogs and cats because its flavonoid compounds (e.g., baicalin) have antioxidant, anti‑inflammatory and mild anxiolytic effects. Evidence in pets is limited and products vary in potency, and skullcap can interact with sedatives or drugs metabolized by the liver and has been associated (rarely) with hepatotoxicity, so it should be used under veterinary guidance, especially in pregnant/nursing animals or those with liver disease.
- Derived from
- Scutellaria lateriflora (American skullcap) or Scutellaria baicalensis (Chinese skullcap) leaf/root extract
- Primary role
- calming and anti-inflammatory botanical additive
Why it's used
Formulators include skullcap for its flavonoid content (baicalin and baicalein in Chinese skullcap; a different flavonoid set in American skullcap), which have been studied for antioxidant and anti-inflammatory activity in laboratory and animal research. It is typically paired with other calming botanicals such as valerian rather than used as a standalone ingredient.
Common concerns
- Species confusion (germander adulteration) Historical cases of skullcap-linked liver injury in humans were later traced to products adulterated or mislabeled with germander, a genuinely hepatotoxic look-alike herb, so sourcing and product quality matter.
- Drug interactions via liver enzymes Baicalin has been shown in animal studies to inhibit the CYP3A liver enzyme pathway and slow clearance of the sedative midazolam, indicating a documented mechanism for interaction with drugs metabolized through that pathway.
- High-dose organ effects Experimental toxicology work has found reversible liver and kidney changes at high baicalin doses, reinforcing that potency and dosing are not standardized across commercial pet products.
- Use in animals with existing liver or kidney conditions Herbal reference sources caution against use in animals with pre-existing liver or kidney disease given the herb's hepatic metabolism.
Also relevant
Two botanically distinct plants are both sold as "skullcap" (American and Chinese), and product labels do not always distinguish which species and extract concentration were used.
4 sources cited
- Skullcap hepatotoxicity case reports and the germander adulteration/mislabeling explanation
- Baicalin inhibits CYP3A and decreases clearance of midazolam, a sedative, in a dose-dependent manner
- Drug-herb interaction mechanisms and clinical relevance of Scutellaria baicalensis with pharmaceutical drugs
- High-dose baicalin toxicity studies showing reversible hepatorenal effects
Common Questions
What category is Skullcap?
Skullcap is categorized as a herb ingredient in the KibbleLab database.
Is Skullcap part of an allergen group?
No allergen group is linked to Skullcap in the KibbleLab database.
Which foods contain Skullcap?
5 foods in the KibbleLab database contain Skullcap, including Earth Animal, Only Natural Pet.
Foods with Skullcap
Alphabetical by brand. Scores run 0 to 10, higher is better, on published veterinary science.
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