Promethazine/Codeine, Oral: References

Promethazine|Codeine. Clinical Pharmacology. Accessed 6/27/15 from http://www.clinicalpharmacology.com

Promethazine hydrochloride and codeine phosphate syrup. 2013 Tris Pharma Inc. Accessed 6/27/15 from http://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=785c605e-1907-4fac-8b69-d504a2076f8e

Lexi-Interact. 2015 Lexi-Comp Inc. Accessed 6/21/15 from http://www.uptodate.com