Table 5.

Chronic Toxicities of Selected Herbs

HERBPOTENTIAL TOXICITY
Artemisia absinthiumCNS: Restlessness, vertigo, tremors, agitation, seizures, headache
• Wormwood• GI: Vomiting, stomach and intestinal cramps
• MISC: Rhabdomyolysis, renal failure
Glycyrrhiza radix• CNS: Ptosis, headache
• Licorice• CARDIAC: Dysrhythmias, hypertension
• MISC: Myoglobinemia (rare), myopathy, edema, pseudohyperaldosteronism
Kombucha tea• CARDIAC: Cardiovascular collapse, respiratory distress
• A mixture of yeast and bacteria fermented in black tea and sugar• GI: Hepatotoxicity, abdominal cramping, anorexia
• MISC: Metabolic acidosis, dermatitis
Larrea divaricata• GI: Liver damage (eg, hepatitis)
• Chaparral• RENAL: Possible renal cysts
• MISC: Fatigue, gastritis
Symphytum sp• GI: Hepatic veno-occlusive disease, cirrhosis
• Comfrey
• Boneset
• Blackwort
• Slippery root
Teucrium chamaedrys• GI: Centrilobular hepatic necrosis
• Germander
  • CNS = central nervous system.

    GI = gastrointestinal.

    MISC = miscellaneous.