Mint relaxes the peripheral blood vessels, calms smooth muscle spasms, dries dampness, expels phlegm, and clears the head. It is regarded as an excellent remedy for stomach cramps due to its ability to reduce hypercontractability of the intestinal muscles. It is often added to formulas using laxative herbs, such as cascara sagrada, to prevent intestinal gripe. Peppermint is considered the strongest mint medicinally, though the other mints have medicinal benefit as well. Peppermint has activity against a wide range of pathogens including streptococcus, staphylococcus, and candida.
Uva-ursi clears heat and toxins, reduces inflammation, stimulates kidney activity, and curbs infec- tion. In the urinary tract arbutin, one of this herb's constituents, is converted to hydroquinine, which helps to alkalinize the urine, thereby inhibiting urinary tract infection. Uva-ursi also soothes and promotes the healing of urinary tissue.
Chanca piedra is used as a “stone breaker” in both human and veterinary herbal medicine. It is a favourite natural treatment for kidney problems in guinea pigs and hamsters. Scientists are investigating several compounds in the herb as antiviral treatments for hepatitis B and HIV.
Rosemary tonifies the nervous system, improves peripheral circulation, promotes warmth, invigorates the lungs, curbs infection, promotes immunity, and uplifts the spirits.