Bone marrow contains tissue that produces lymphocytes. B-lymphocytes (B-cells) mature in the bone marrow. T-lymphocytes (T-cells) mature in the thymus gland. Other blood cells such as monocytes and leukocytes are produced in the bone marrow.
However, Soma and anxiety is not one of these situations. Since the anti-anxiety effects of Soma are not very strong, you would need to take unsafe amounts to treat your anxiety. A good doctor would not prescribe Soma for your anxiety and would suggest other alternatives.
Sassafras drugs have also been used to help in cases of anxiety and PTSD. Sassafras drug has a long list of negative and potentially very dangerous side effects as well. The negative side effects have lead to both MDMA and MDA being classified as illegal class A substances in the U.S.