Hello everyone, my daughter is currently 6 months old. She has a cough, cold and runny nose. I currently have Equate Children's Cough Liquid for Ages 4 - 12 years. Label states the active ingredients are:

Dextromethorphan HBr 5mg
Guaifenesin 100mg

Can a dose of 0.75 mL do any harm to my daughter or will it help make her feel a bit better?

Thank you in advance for all the help.

Sincerely,

Ben