Add to Cart Compare Quick view 701018 Major Pharmaceuticals. Guaifenesin, 600mg, 5 x 20, 24/cs, NDC# 00904-6718-39 (US Only) (cs) Major Pharmaceuticals MSRP: Now: $2,578.71 Was: MAJ 701018_cs MSRP: Now: $2,578.71 Was: Add to Cart Compare Quick view