O mne
Promethazine collaborate to give reliable coughing alleviation. How MGP Cough Syrup Works mgp cough syrup works by subduing the coughing reflex in the brain. Codeine acts on the cough center in the mind to decrease need to cough. Promethazine, on the other hand, works as a cough suppressant by decreasing the production of mucus, which leads to less coughing.
