Can I Give My Dog Robitussin Dm That Contains Mucinex?

Can I Give My Dog Robitussin Dm That Contains Mucinex? There is at least one OTC veterinary cough medicine containing both guaifenesin and dextromethorphan similar to Mucinex DM. The manufacturer’s recommended dosing is one-half tablet (50 mg/5 mg) every four hours for small dogs and cats and one tablet (100 mg/10 mg) every four hours