OTC
Mucolytic and Antihistamine combination (cough and catarrh medicine)
Carbocisteine; Promethazine Hydrochloride
Last reviewed April 2026
Who is this for?
What is this drug?
This is a combination medicine containing carbocisteine (which thins and loosens thick mucus in your chest and airways) and promethazine (an antihistamine that helps reduce coughing, sneezing, and allergic symptoms). Together they help you cough up phlegm more easily while calming irritating coughs.
What is it used for?
Chesty cough with thick catarrhblocked nose and runny nose from cold or fluallergic coughbronchitiscatarrh in the chest
Available Over The Counter
Available at pharmacies without a prescription. Rules may vary by country.