Promethazine Plain Oral Solution 

Promethazine plain oral solution is a medication that temporarily treats runny nose, coughing, and sneezing caused by the common cold, allergies, hay fever, and other breathing illnesses. It is a phenothiazine that works like an antihistamine, blocking the effects of histamine, a substance released by the body during an allergic reaction. It can also help you relax, go to sleep, and relieve nausea, vomiting, or pain before or after procedures². Promethazine plain oral solution is contraindicated in comatose states, and in individuals known to be hypersensitive or to have had an idiosyncratic reaction to promethazine or to other phenothiazines.