The following is a partial list from the Star K of over-the-counter medication that do not present a kashrus issue…
Benadryl (Ultratab Tablets, Children’s Allergy Chewables Grape, Children’s Allergy Liquid Bubblegum Dye-Free, Cherry
Contac Cold & Flu Caplets, Liquid Meda Consumer Healthcare
Coricidin HBP Cold & Flu Tablets (dairy)
Emergen-C Kidz Vitamin C 250 Mg. (Fruit Punch)
Emergen-C Super Fruit Pomegranate, Triple Berry Blast
Emergen C Hydration + Sports Drink Mix with Vitamin C, Electrolyte Replenishment Lemon-Lime Twist Flavor
Emergen-C Immune +Warmers Apple Cider Hot Drink Mix (Powders when mixed in beverage)
Emergen-C Original Formula (Powders to Mix) Cranberry-Pomegranate, Raspberry, Lemon Lime, Pink Lemonade, Acai Berry, Coconut Pineapple, Strawberry Kiwi, Berry Blss, Meyer Lemon, Tropical, Tangerine, Super Orange, Orange
Mucinex (cold, flu & Sore Throat Max Caplets, Expectorant Tablets, Max Strength D Tablets, Regular Tablet, Liquid Cough Medicine)
Robitussin (DM+Maximum Strength Liquid Cough Medicine)
Sudafed
Tylenol (Children’s Cold+Cough +Sore Throat Bubble Gum and Grape
Vicks Children’s Nyquil Cold and Cough Liquid and Nyquil Cold and Flu Nighttime Relief Liquid Cherry, Original