Uses & Effectiveness Overview Gumweed is an herb. People dry the leaves and top of the plant to make medicine. People use gumweed for conditions such as cough, bronchitis, asthma, and skin conditions, but there is no good scientific evidence to support these uses. Did you know that GUMWEED is not actually a vitamin name, but rather a common name for the plant known as Grindelia? Native Americans used the resin from Grindelia plants as a natural remedy for toothaches, hence the name GUMWEED. Side Effects When taken by mouth: Gumweed is POSSIBLY SAFE for most people when taken by mouth. But it can cause some side effects such as stomach upset and diarrhea. When applied to the skin: There isn?t enough reliable information to know if gumweed is safe or what the side effects might be. Interactions We currently have no information for GUMWEED overview. Special Precautionsand Warnings When taken by mouth: Gumweed is POSSIBLY SAFE for most people when taken by mouth. But it can cause some side effects such as stomach upset and diarrhea. When applied to the skin: There isn?t enough reliable information to know if gumweed is safe or what the side effects might be. Pregnancy and breast-feeding: There isn?t enough reliable information to know if gumweed is safe to use when pregnant or breast-feeding. Stay on the safe side and avoid use. Allergy to ragweed, daisies, and related plants: Gumweed may cause an allergic reaction in people who are sensitive to the Asteraceae/Compositae plant family. Members of this family include ragweed, chrysanthemums, marigolds, daisies, and many others. If you have allergies, be sure to check with your healthcare provider before taking gumweed. Dosing The appropriate dose of gumweed 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 gumweed. 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.