Propolis Cough Syrup made with Buckwheat honey, Elderberry & Melatonin - Beekeeper’s Naturals nighttime propolis cough syrup is packed with immune-supporting and super-soothing ingredients like unpasteurized buckwheat honey and vitamin C-rich elderberry that help your body recover as it soothes your throat and dry coughs. And with melatonin, l-theanine, and lemon balm added to help get that much need good night's sleep