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Herb comparison

Boswellia (Boswellia serrata) vs Cat's Claw (Uncaria tomentosa)

Both plants are listed as traditional remedies for 2 of the same conditions, which is why they are easy to confuse. Their descriptions and full safety notes are below, free.

Boswellia (Boswellia serrata) plant

Boswellia (Boswellia serrata)

Cat's Claw (Uncaria tomentosa) plant

Cat's Claw (Uncaria tomentosa)

About
Boswellia is a deciduous tree growing to about 49 ft (15 m), characterized by its pale, papery bark, compound leaves, and small clusters of white flowers. The resin, which exudes from the bark and dries to a transparent gold color, has been used for thousands of years in traditional Ayurvedic medicine for arthritis, pulmonary diseases, ringworm, and diarrhea. The key active components are boswellic acids, noted for their marked anti-inflammatory and pain-relieving properties. Modern research suggests boswellia can be helpful in osteoarthritis, rheumatoid arthritis, bursitis, tendonitis, Crohn’s disease, and ulcerative colitis.
Cat's claw is a climbing vine that can grow to 100 feet or more, with stems up to 8 inches in diameter, large glossy leaves, and sharp hooks resembling a cat's claws. Native to tropical rainforests in the central and eastern Andes - especially Peru, Ecuador, and Colombia - it has also been found in Guatemala, Costa Rica, and Panama. Known by the Ashaninka and other indigenous peoples of central Peru for its power in regulating illness, it has been used since ancient times to treat serious conditions ranging from asthma and diabetes to arthritis and cancer. By the early 1990s, over-collection from the wild threatened the species' survival; only sustainably sourced stem bark should be used, rather than root bark.
Safety & precautions
No known specific warnings were provided in the text. As with any herb, it is best used under the advice of a qualified practitioner, especially for chronic inflammation or serious conditions.
Avoid during pregnancy and while trying to conceive, as cat's claw has contraceptive activity. Alcoholic extracts may inhibit cytochrome P450 enzyme CYP3A4 in vitro, though clinical relevance is uncertain. The herb may have additive antiplatelet and antihypertensive effects when combined with conventional drugs. One isolated case reported increased levels of atazanavir, ritonavir, and saquinavir in a patient taking cat's claw. Only cat's claw containing POAs should be used medicinally, as tetracyclic oxindole alkaloids (TOAs) may suppress immune function. Some preparations are standardized to contain little or no TOAs. Monitor blood pressure and watch for signs of increased bleeding if using with antiplatelet or antihypertensive medications.

Safety text above is printed in full and is never abbreviated. For each plant’s complete precautions, drug and food interactions and preparation notes, open its own page - both are free.

Conditions that list both