- What other names is Black Horehound known by?
- What is Black Horehound?
- How does Black Horehound work?
- Are there safety concerns?
- Are there any interactions with medications?
- Dosing considerations for Black Horehound.
People take black horehound for treating nausea, vomiting, spasms, cough, and whooping cough. They also take it for relieving symptoms of nervous disorders, especially mild sleep problems. Black horehound is also used for increasing bile flow.
Some people apply black horehound to the skin as a mild drying agent (astringent) and as a treatment for gout.
Rectally, black horehound is used as an enema against intestinal worms.
Don't confuse black horehound with white horehound.
Insufficient Evidence to Rate Effectiveness for...
- Nervous disorders.
- Whooping cough.
- Increasing bile flow.
- Gout, when applied to the skin.
- Intestinal worms, when used rectally as an enema.
- Other conditions.
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There isn't enough information to know if black horehound is safe when applied directly to the skin or used rectally.
Special Precautions & Warnings:Pregnancy and breast-feeding: It's LIKELY UNSAFE to take black horehound by mouth if you are pregnant. Black horehound may affect the menstrual cycle, and this could threaten the pregnancy. It's also best to avoid putting black horehound on the skin or using it rectally during pregnancy, since safety of these uses is unknown.
If you are breast-feeding, don't use black horehound either. The possible effects on the nursing infant are unknown.
Parkinson's disease: Black horehound contains chemicals that affect the brain. There is some concern that black horehound might affect treatment for Parkinson's disease.
Schizophrenia and psychotic disorders: Black horehound contains chemicals that affect the brain. There is some concern that black horehound might harm people with schizophrenia and psychotic disorders.
Medications used for Parkinson's disease (Dopamine agonists)
Interaction Rating: Moderate Be cautious with this combination.
Talk with your health provider.
Black horehound contains chemicals that affect the brain. These chemicals affect the brain similarly to some medications used for Parkinson's disease. Taking black horehound with these medications might increase the effects and side effects of some medications used for Parkinson's disease.
Some medications used for Parkinson's disease include bromocriptine (Parlodel), levodopa (Dopar, component of Sinemet), pramipexole (Mirapex), ropinirole (Requip), and others.
Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).
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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Last Editorial Review: 3/29/2011