This medication contains the active ingredient dextromethorphan which is the most widely used cough suppressant. (vetinfo.com)
Use a Cough Suppressant: Ask your veterinarian about a cough suppressant that contains dextromethorphan such as Robitussin Maximum Strength Cough Syrup. (dog-health-guide.org)
The cough suppressant dextromethorphan has long been used during breastfeeding and is considered safe. (babycenter.com)