No direct reports of chronic wasting disease (CWD) related to deer velvet supplementation have been published. However, several Web sites contain disclaimers mentioning the possibility of the disease being present in antler products. The CDC has not yet found a relationship between CWD and any neurological disease that affects humans with deer velvet use.
Chondroitin sulfate is a compound of connective tissues that are usually found in cartilage. Glucosamine sulfate is a natural building block for the growth and maintenance of healthy cartilage. Since osteoarthritis is caused by the deterioration of the cartilage in the bone joints, a daily supplement of deer antler velvet can help to stimulate the repair of deteriorated bone cartilage with healthy doses of chondroitin sulfate and glucosamine sulfate.

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A systemic review on human interventions[25] makes note of a study conducted on patients of osteoarthritis (Edelman et al. 2000; cannot be located online) which found improvements in joint pain symptoms relative to baseline in the Velvet Antler group and not placebo, although a lack of information on blinding and randomization precludes results that can be drawn from this study. 
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