As with most dietary supplements, there is no well-established standard dose for astragalus, although general guidelines may be obtained from a few clinical trials.
(Click Astragalus Dosage for more information.)
Little is known about the possible side effects of astragalus, although side effects appear to be unlikely.
(Click Astragalus Side Effects to learn more, including potentially serious side effects you should report immediately to your healthcare provider.)
Theoretically, astragalus may interact with some medications (see Astragalus Drug Interactions).
When used appropriately, astragalus is probably safe for many people. However, some people may be more likely to experience problems with it than others. Therefore, you should talk with your healthcare provider prior to taking this product if you have:
- An autoimmune disease, such as:
- Had an organ transplant
- Any allergies, including allergies to foods, dyes, or preservatives.
Also, let your healthcare provider know if you are:
- Pregnant or thinking of becoming pregnant (see Astragalus and Pregnancy)
- Breastfeeding (see Astragalus and Breastfeeding).
Make sure to tell your healthcare provider about all other medicines you are taking, including prescription and nonprescription medicines, vitamins, and herbal supplements.
(Click Is Astragalus Safe? for more information, including warnings and precautions.)