Noun
cough medicine (countable and uncountable, plural cough medicines)
A medication or medicine used to treat those people with coughing and related conditions, usually in liquid or syrup form.
It can also be used as a natural acne medicine or taken orally as cough medicine (often mixed with green tea ), and is a natural anti-inflammatory. Source: Internet
From 1898 to 1910 heroin was marketed as a non-addictive morphine substitute and cough medicine for children. Source: Internet