Synalar-N Cream 30g (Fluocinolone Acetonide + Neomycin)Synalar N Cream 30g Fluocinolone Acetonide + Neomycin Sulfate Prescription required. Synalar N Cream is a dual action topical prescription medication combining a potent corticosteroid with a broad spectrum topical antibiotic. It is indicated for inflammatory skin conditions complicated by bacterial infection. Active Ingredients Fluocinolone Acetonide: A potent topical corticosteroid that suppresses inflammatory mediators, reducing redness, itching,