Are There Any Side Effects of Nux Vomica?

Seeds from the evergreen tree Strychnos nux vomica are the main natural source of the poison strychnine. Homeopathy includes nux vomica as a remedy for various health disorders, including allergies, asthma, backaches, gastrointestinal ailments, colds, hay fever and more. Homeopathic remedies are generally safe due to the extremely diluted amounts of the active substance. Consuming nux vomica seeds rather than a reputable homeopathic remedy can lead to life-threatening side effects because the seeds may contain toxic levels of strychnine.

Psychological Effects

Milder side effects associated with Strychnos nux vomica are primarily psychological. As listed by the U.S. Centers for Disease Control (CDC), they include agitation, apprehension, becoming easily startled, confusion, fear and restlessness.

Muscle Effects

Because strychnine affects the chemical that regulates nerve signals to the muscles, consuming this substance in nux vomica can cause muscle cramps, pain, tenderness and severe spasms. There may be uncontrollable arching of the back and neck, and rigidity in the arms, legs and jaw. Eventually the muscles may become so weak the person cannot breathe. Another possible life-threatening side effect is rhabdomyolysis, which involves muscle breakdown and proteins being released into the bloodstream that can cause kidney damage and kidney failure.

Neurological Effects

Strychnos nux vomica can have neurological effects including dizziness, rapid uncontrollable eye movements (nystagmus) and seizures, according to Healthline. People with seizure disorders may not be able to safely take the homeopathic remedy.

Liver Effects

Strychnine in nux vomica can accumulate in the liver when an individual takes the homeopathic remedy for an extended time frame, as noted by Healthline. This is more likely in people who already have a liver disorder. Signs of liver problems include dark urine, jaundice and fatigue.

Pregnancy Considerations

Pregnant and breastfeeding women should not take nux vomica because ingestion of any strychnine may be toxic to the baby. Homeopathy has not established any safe dosage or maximum duration of nux vomica during pregnancy and breastfeeding, according to Healthline.

References

Article reviewed by Mia Paul Last updated on: Apr 30, 2010

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