Interactions with Benzodiazepines and Other CNS Depressants Tell patients and caregivers that potentially lethal additive effects might arise if acetaminophen and codeine phosphate tablets are used with benzodiazepines or other CNS depressants, such as alcohol, instead of to use these drugs concomitantly Except supervised by a healthcare service provider (see https://heliskidirectory.com/listings13208105/not-known-facts-about-codeine-long-terme