Poly Pharmaceuticals Finished-dose maker United States Makes ALAHIST DM [Dextromethorphan HBr, Pheniramine Maleate, Phenylephrine HCl], 15 mL in 1 BOTTLE • Alahist • Alahist D [Pheniramine Maleate, Phenylephrine · +33 more products polypharm.net Products & contact