Thompson - Vitamin B12 Lozenge Natural Cherry Flavor 1000 mcg. - 30 Lozenges Thompson Vitamin B12 lozenges contain 1000mcg of vitamin B12 plus folic acid with fresh and healthy ingredients. Thompson s own laboratory analysis guarantees purity and freshness of all Thompson products. More About Vitamin B12Vitamin B12 is a water-soluble vitamin needed for normal nerve cell activity DNA replication and production of the mood-affecting substance SAMe (S-adenosyl-L-methionine).