@caroline2: I found Shaklee Vivix, a muscadine grape extract heavy in resveratrol, helped my RA a lot through pregnancy when I had to minimize my RA meds. It's kind of pricey but it was worth every penny to me.

Also, ask your friend with RA if their Vitamin D blood level has been checked. Even moderately low, but normally acceptable Vitamin D blood levels in prope with RA can make their RA pain much worse.