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diarrhea, constipation, swollen eyelids, leg swelling, hair loss, and irregular heartbeat.
There is some concern about the safety of chondroitin sulfate because it comes from animal sources. Some people are worried that unsafe manufacturing practices might lead to contamination of chondroitin products with diseased animal tissues including those that might transmit bovine spongiform encephalopathy (mad cow disease). So far, there are no reports of chondroitin causing disease in humans, and the risk is thought to be low.
Some chondroitin products contain excess amounts of manganese. Ask your healthcare professional about reliable brands.
Do not use chondroitin sulfate if:
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.