The first question to ask, is why? Why are you considering this supplement? A supplement is not intended to fix a crappy diet or poor exercise program. A supplement is intended to be just that, a supplement to your existing good diet/good exercise program. And if you’re eating a well-rounded diet, then there’s really no need for supplementation at all.
with cardio and strength. Keep in mind I was active my whole life and fairly strong for my size and age. My endurance was crazy and I often out worked guys 18-40 without thinking twice. Since the injury I have more pain and less endurance. I never slept good but since the injury “night time” sleep is horrible at times. up for over 24hrs. Though I am not great the next day I still functioned can work a full day. IN general I sometimes fatigue and have to nap after a workout -which is a pathetic workout compared to the workouts I used to do.
First, the facts: Deer antler has been a popular element of Eastern medicine for centuries. And—like red meat, eggs, or milk—deer antler contains small amounts of insulin-like growth factor 1, or IGF-1, explains Oliver Catlin, president of the Banned Substances Control Group (BSCG), which tests dietary supplements for illegal performance enhancers.
Russian and Japanese researchers have conducted experiments using deer antler extract and found that it appears to lower blood pressure in both human subjects and laboratory animals. A series of clinical case studies (Albov, 1969) were conducted in which the effects of Pantocrin on cardiac patients were assessed. In one test involving 32 subjects with high blood pressure caused by cardiac disease, early onset menopause or obesity, blood pressure was lowered in 81% of patients. In another study involving 13 patients with hypotension caused by disorders of heart muscle activity, blood pressure was lowered for 84% of patients.
After about 55-60 days of growth the velvet antler is removed painlessly from the deer in less than 60 seconds so that it may be done as humanely as possible. These deer are not harmed and experience no pain in the removal of their velvet antlers for our consumption. The antler is then scraped of its fuzzy velvet and then cleaned before it is sanitized and pasteurized for safety, and then inspected for quality grading.
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.
In September, 2013, the headquarters of S.W.A.T.S. was raided and ordered to be shut down by Alabama's attorney general citing "numerous serious and willful violations of Alabama’s deceptive trade practices act". Among the violations were "claims that the company made about a number of products that were unsupported by scientific research. Some of these products were marketed as 'dietary supplements.'"  The assistant Alabama attorney general "says that Deer Antler Spray is dangerous and its sellers are law-breakers." 
In a randomized, placebo controlled test in 2004, researchers at the University of Alberta, Canada, placed 18 males from the Edmonton Police Force into a 9 week strength training program. The results showed that deer antler velvet increased the strength and endurance of the subjects relative to the control group. The researchers found that use of deer antler velvet significantly increased blood plasma testosterone levels.
Deer antler velvet can play a pivotal role in helping to not only relieve the symptoms of diseases that affect joints, such as osteoarthritis, they can possibly eliminate them entirely. The way it may do this is through the introduction of chondroitin sulfate and glucosamine sulfate into the body. Both of these compounds are abundant in deer antler velvet.