Studies suggest that the short-term use of ginger can safely relieve pregnancy-related nausea and vomiting.
Studies are mixed on whether ginger is effective for nausea caused by motion, chemotherapy, or surgery.
It is unclear whether ginger is effective in treating rheumatoid arthritis, osteoarthritis, or joint and muscle pain.
Researchers funded by the United States National Center for Complementary and Alternative Medicine have looked at whether ginger interacts with drugs, such as those used to suppress the immune system, and at ginger’s effect on reducing nausea and vomiting. They are also studying:
- the general safety and effectiveness of ginger's use for health purposes, as well as its active components and effects on inflammation
- the effects of ginger dietary supplements on joint inflammation, rheumatoid arthritis, and osteoporosis
Few side effects are linked to ginger when it is taken in small doses.
Side effects most often reported are gas, bloating, heartburn, burning sensation, oral numbness, diarrhea, constipation, and nausea. These effects are most often associated with powdered ginger.
Some of the medications that interact with ginger include:
- anticoagulant/antiplatelet medication: Ginger may increase the risk of bleeding when taken at the same time as anticoagulants or antiplatelet medication such as aspirin, clopidogrel, dalteparin, enoxaparin, heparin, or warfarin.
- nifedipine: Your blood may not clot as readily if you are taking nifedipine at the same time as ginger.
Before taking any new medications, including natural health products, speak to your physician, pharmacist, or other health care provider. Tell your health care provider about any natural health products you may be taking.