This is for informational purposes only and should not be considered medical advice. For medical advice or diagnosis, consult with your doctor.
 
Horsetail (Shavegrass): Magical and Medicinal Uses, Contraindications, and Side Effects
 
Ritual/Ceremonial/Symbolic Uses:
 
Believed to ward off negative energies and protect against harm.
 
Thought to attract wealth and abundance.
 
In some cultures, it is associated with snakes and used in rituals involving them.
 
Medicinal Uses
 
Diuretic: It is believed to increase urine production and help with fluid retention.
 
Wound healing: It may help to stop bleeding and promote wound healing.
 
Bone health: Its silica content may contribute to bone strength.
 
Hair and nail health: It is sometimes used to improve the condition of hair and nails.
 
Contraindications and Side Effects
 
Thiaminase activity: Horsetail contains thiaminase, an enzyme that can break down thiamine (vitamin B1). This could lead to thiamine deficiency if taken in large amounts or for long periods, especially in individuals with poor nutrition.
 
Nicotine content: Horsetail contains nicotine, which can cause side effects like nausea, vomiting, and diarrhea in some people.
 
Pregnancy and breastfeeding: It is not recommended for people who are pregnant or breastfeeding, due to the lack of safety information.
 
Kidney problems: People with kidney problems should avoid horsetail as it may irritate the kidneys.
 
Allergies: Some people may be allergic to horsetail.
 
Important Note:
 
Scientific evidence: While horsetail has been used traditionally for various purposes, more scientific research is needed to confirm its effectiveness.

The appropriate dosage of horsetail depends on various factors, including age, health, and the specific condition being treated. It is important to consult a healthcare professional before using horsetail, especially if you have any underlying health conditions or are taking medications.