Not to be used by pregnant or lactating women, children under 2 years or those on blood-thinning drugs. Possible allergic reaction of mouth ulcers if leaves chewed raw.
Feverfew not to be taken by those using anticoagulants without consulting a medical practitioner. Feverfew interferes with blood-clotting ability.
No necessary precautions to observe in the diet.
No particular precautions have been reported as being necessary in using cyperus.
Considered safe in recommended doses. Possible allergic reactions of contact dermatitis and airborne dermatitis.
Not to be taken during pregnancy.
No special precautions are necessary when cuscuta is used in the doses normally prescribed by herbalists.
Research is limited, there have been no precautions issued. Be aware of the known side effects of red wine and resveratrol.
Not to be used internally by people with gastrointestinal ulcer or children.
Preferably to be administered under the supervision of a medical practitioner.
Not to be taken by pregnant or nursing women. Use precautions when identifying the herb, often confused with hemlock parsley and poison hemlock.
May interact with anti-thrombotic medications, e.g. aspirin and warfarin. Interfers with iron absorption in those who take iron supplements. NSAIDS will decrease the beneficial effects of feverfew.
Feverfew should not be taken by pregnant women or those with migraine (if the migraine is caused by nutritional deficiency). May cause allergic reactions, dermatitis or mouth sores.