Ginger trials for osteoarthritis
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In this trial, 67 participants with
osteoarthritis of the hip or knee were given one of the following treatments three times a day for three weeks:
170 mg capsules of ginger extract
400 mg ibuprofen tablets
Participants were given paracetamol as a ‘rescue drug’ for pain relief during the study.
Participants who were given ibuprofen or ginger had a significant reduction in pain scores and reported taking less paracetamol compared to those who got placebo tablets.
Ibuprofen was more effective than ginger in both treatment outcomes.
Trial 2 included 29 people with knee osteoarthritis. Participants were given either 250 mg of ginger capsules or placebo capsules four times a day for 3 months (phase A). The groups then swapped treatments for three months (phase B).
At the end of phase A, participants who were treated with ginger had a significant reduction in pain and disease-related disability when compared to participants who were allocated a placebo during the same phase.
No significant difference between treatment groups was observed at the end of phase B.
In the final trial, 247 participants with knee osteoarthritis were given either 255 mg of ginger capsules or placebo capsules twice a day for six months. Paracetamol was given as a rescue drug for pain relief during the study.
63% of the participants who were treated with ginger had significant reduction in knee pain compared to 50% of the placebo group.
The severity of pain and overall improvement of osteoarthritis-related symptoms were also significantly reduced in the group taking ginger compared to the placebo group.
Both groups were similar with respect to their perceived improvement in quality of life.
The ginger group reported more gastrointestinal side-effects (like heartburn), but they were relatively mild and tolerable.
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