• Chondroitin sulfate is a chemical that is normally found in cartilage around joints in the body. Chondroitin sulfate is usually manufactured from animal sources, such as shark and cow cartilage.
• It is often used in combination with other ingredients, including manganese ascorbate, glucosamine sulfate, glucosamine hydrochloride, or N-acetyl glucosamine.

• Chondroitin is used for osteoarthritis.  
• Chondroitin sulfate is also taken by mouth for HIV/AIDS, heart disease, heart attack, weak bones (osteoporosis), joint paincaused by drugs used to treat breast cancer, acid reflux, high cholesterol, muscle soreness after exercise, a bladder condition called interstitial cystitis, a bone disease called Kashin-Beck disease, and itchy and scaly skin (psoriasis). Chondroitin sulfate is also used in a complex with iron for treating iron-deficiency anemia.
   

•  Rash,
•  Headache,
•  Diarrhea,
•  Upset stomach,
•  Flatulence

Do not take chondroitin and consult your doctor:

•  If you have allergies, asthma, or prostate cancer.
•  If you have bleeding disorders or diabetes.
•  If you are taking blood thinners.
•  If you are pregnant or breastfeeding.