Linco-Spectin 100 Soluble Powder Presentation A pale yellow to light tan soluble powder for dissolution in water. Each pack contains (to give 100 g combined antibiotic activity): Lincomycin, 33.3 g (as Lincomycin Hydrochloride) and Spectinomycin, 66.7 g (as spectinomycin sulphate). Also contains sodium benzoate 4.1 g as preservative.