Although no serious adverse reactions have been reported, it's best avoided by pregnant and breastfeeding women.

Therapeutic uses: traditional Peruvian remedy for boosting the immune system to treat and prevent infection. Also used for gastrointestinal disorders such as ulcers, diverticulitis or gastritis, viral and bacterial infections, skin allergies and rheumatoid arthritis.
Typical preparation: tincture, herbal tea, cream.