Studies indicate that ingested oral cyanocobalamin tablets are ineffective in the treatment of allergic disease, perhaps because productsforallergies once ingested, they are directly metabolized in the liver. When B12 is delivered via injection or lozenge it passes throughout the bloodstream before arriving at the liver. It is during this first pass productsforallergies in its native form that it is believed to exert its therapeutic effect. CLINICAL RESEARCH: "The World Health Organization (WHO) recognizes allergic rhinitis (hay fever), sinusitis, asthma,...conjunctivitis, urticaria, eczema, dermatitis (contact and atopic)...allergic and migraine headache...as diseases in which IgE-mediated allergy may be involved."1 In 1988, asthma and allergic rhinitis subjects were treated with B12. Total IgE, specific IgE and pulmonary lung functions were taken at productsforallergies days 45, 150 and 180 from baseline. Eight of the 9 subjects had reduced IgE. 2 In 1989 open label studies at two sites in Riverside County, CA in 1989. Sixteen of the 17 subjects had lowered IgE levels from Day 0 to Day 30.3

With no further treatment, the 1996 ten-month follow-up data (n=92) from a high pollen period in Oregon, Washington and Idaho together showed a greater reduction in the active group (n=43) than the placebo group (n=49) on the primary endpoint, defined as a combination of symptom and rescue medication scores.8 Patients gave blood serum samples prior to the treatment in 1995 and one year later in 1996. They were immunoassayed for specific IgE antibodies using a chemi-luminescent technique. Statistician Bradley Rosebrook ran T-Tests comparing average baseline IgE levels to one-year. For the seasonal allergens reported, the active group (n=27) had on average a greater reduction in IgE than the placebo group (n=34) for 13 out of 16 allergens.8

In January 1997, 62 subjects who had been the placebos in the 1995 study were invited to receive the vitamin B12. In June 1997, the 62 placebo subjects were sent a questionnaire asking: How would you compare your overall allergy (hay fever) productsforallergies symptoms this spring to the last two springs? 20 people responded, with 15 reporting productsforallergies having had the B12 treatment, and productsforallergies 5 not. 12 of the 15 reported at least a slight improvement in overall allergy symptoms, and 1 of the 5. Improvement ratios - 12:3 having received treatment, 1:4 not having received treatment.8 A bioequivalence study showed that a 3000 mcg lozenge delivered an equivalent amount of cyanocobalamin to the blood as a 15 mcg injection.9 From the spring to the summer patients with demonstrated allergic rhinitis received with the cyanocobalamin (or placebo) containing lozenge twice daily for 21 consecutive days. All subjects also received C and B oral multivitamins for 21 days. Twice daily subjects maintained a nine-week diary on sneezing, runny nose, nasal productsforallergies congestion, itchy eyes, itchy productsforallergies nose and antihistamine (chlorpheniramine) use. In the post-treatment period, the active group (n=15) recorded on average a greater reduction in symptoms and in antihistamine use than the placebo group (n=9). The results yielded reductions (0.1>p>0.01) in total weekly productsforallergies symptom/rescue medication for the active group compared to the placebo for weeks 2, 6, 8 and 9. The results tend to replicate those of the studies on injectable cyanocobalamin.10