These toxins prevent voltage-gated sodium channels from closing, and may cause tingling sensations, paralysis, or heart failure.

This alkaloid, from Chondrodendron tomentosa (Velvet Leaf), was previously used to provide skeletal muscle relaxation during surgery.

This medicinal root has been used since the time of ancient Greece and Rome as a remedy for anxiety, and laboratory research suggests it acts on GABA receptors.

These spicy phytochemicals work by intercepting pain signals sent to the brain from inflamed joints.

This alkaloid from South American Jaborandi may be prescribed in cases of ocular hypertension or to prevent dry mouth.

The scientific name of this plant is a tribute to Atropos, one of the three Greek goddesses of fate, who is responsible for cutting the thread of life.

Alkaloids from this plant were included in so-called "magic brews" but are now used to combat nausea and to decrease saliva production.

Hypericum perforatum has traditionally been used for a nerve tonic and today is recommended as an herbal remedy for mild depression. What is the common name of this species?

This saponin comes from yams and is used in the production of cortisone and hydrocortisone.

This carrot relative, commonly called gotu kola, is used to treat wounds, burns, and scars.

This is the term for a medicine that provides a remedy for nausea and vomiting.

This is the active ingredient that lends medicinal properties to common licorice.

This is the general name for toxins found in green potatoes.

These toxins occur in beans, but are rendered harmless through cooking.