Anaphylaxis: Anaphylaxis is claimed with codeine, on the list of components in promethazine HCl and codeine phosphate oral Option. The opioid antagonists, naloxone and nalmefene, are unique antidotes for respiratory depression resulting from opioid overdose. For clinically substantial respiratory or circulatory despair secondary to codeine overdose, administer an opioid antagonist. https://cesarqpwtn.blogoxo.com/32405188/akorn-promethazine-codeine-things-to-know-before-you-buy