Side Effects, Risk Factors of, and Cautions for Leech
Avoid use during pregnancy as it may cause birth defects.
Excess intake may cause
Nausea
Vomiting
Metrorrhagia
Gastrointestinal Disorder
Abdominal Pain
Haematuria
Coma.
Drug Interaction :
If you are taking Leech then do not take Anticoagulant medications as it contains an anticoagulant substance called Hirudin, found in fresh leech saliva.