I was unable to find any literature on this. However, the fact that Dr. C referred to this as a 'simple' formula - I would try 2-1 Astragulus or even 1-1.
Immucalm is designed to calm yet strengthen the body's immune responses. Many times we believe that we are allergic to certain foods, plants or animals, but in reality our immune system may just be overacting. This simple combination of marshmallow root and astragalus has made life easier for those who suffer from allergies, hayfever, asthma, Rheumatoid Arthritis or any hyperactive immune response.