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For most people, astragalus is well tolerated.
However, minor side effects have been reported in studies, such as a rash, itching, runny nose, nausea and diarrhea.
When given by IV, astragalus may have more serious side effects, such as irregular heartbeat. It should only be administered by IV or injection under medical supervision.
Though astragalus is safe for most people, the following people should avoid it:
- Pregnant and breastfeeding women: There’s currently not enough research to demonstrate that astragalus is safe while pregnant or breastfeeding.
- Individuals with autoimmune diseases: Astragalus may increase the activity of your immune system. Consider avoiding astragalus if you have an autoimmune disease, such as multiple sclerosis, lupus or rheumatoid arthritis.
- Individuals taking immunosuppressant drugs: Since astragalus may increase the activity of your immune system, it may decrease the effects of immunosuppressant drugs.
Astragalus may also have effects on blood sugar levels and blood pressure. Therefore, use this herb with caution if you have diabetes or issues with your blood pressure. *
The body can develop a tolerance to immune stimulating herbs such as Astragalus if it is taken for long periods. Astragalus may interact with medications that suppress the immune system, such as the drug cyclophosphamide taken by cancer patients and similar drugs taken by organ transplant recipients. Astragalus may interfere with the actions of diuretics, phenobarbital, beta-blockers, and anticoagulants. Pregnant women should consult their doctors before taking astragalus or giving it to children.
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