How does Yew work?

Yew might affect various parts of the body including nerves, the heart, and muscles.

Are there safety concerns?

Yew is LIKELY UNSAFE for people. All parts of the yew plant are considered poisonous. Yew can cause severe stomach problems and can cause the heart rate to slow down or speed up dangerously. Signs of poisoning might include nausea, dry mouth, vomiting, stomach pain, dizziness, weakness, nervousness, heart problems, and many others. Death has occurred after taking 50-100 grams of yew needles.

Special Precautions & Warnings:

It is LIKELY UNSAFE for anyone to take yew, but some people have extra reasons not to use it:

Children: It is UNSAFE for children to eat the berries or needles of yew. Swallowing one berry can be fatal in a child. Eating the berries or needles can cause the heart to beat dangerously slow or fast.

Pregnancy and breast-feeding: It is UNSAFE for women who are pregnant or breast-feeding to take yew. Yew needles might cause an abortion. Also, taking the needles can poison the mother.

Dosing considerations for Yew.

The appropriate dose of yew depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for yew. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.

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Report Problems to the Food and Drug Administration

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.

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