Promethazine HCl and Dextromethorphan Hydrobromide Syrup is a combination of an antihistamine and a cough suppressant used to treat cough, itching, runny nose, sneezing, and itchy or watery eyes caused by colds or allergies. Promethazine HCl and dextromethorphan hydrobromide syrup is available in generic form. Common side effects of Promethazine HCl and dextromethorphan hydrobromide syrup include:
- blurred vision
- dry mouth
- ringing in your ears
- increased sensitivity to sunlight
The dose of Promethazine HCl and Dextromethorphan Hydrobromide Syrup for adults is one tsp every 4 to 6 hours. Children 6 years to 12 years, the dose is one-half to one tsp every 4 to 6 hours. Children 2 years to 6 years, the dose is one-quarter to one-half tsp every 4 to 6 hours. Promethazine and Dextromethorphan may interact with elecoxib, cinacalcet, darifenacin, imatinib, quinidine, ranolazine, ritonavir, sibutramine, terbinafine, medicines to treat high blood pressure, antidepressants, sedatives or anxiety medicines, barbiturates, atropine, belladonna, clidinium, dicyclomine, glycopyrrolate, hyoscyamine, methscopolamine, and scopolamine. Tell your doctor all medications you use. During pregnancy, Promethazine HCl and Dextromethorphan Hydrobromide should be used only if prescribed. It is unknown if this medication passes into breast milk. It may have undesirable effects on a nursing infant. Consult your doctor before breastfeeding.