Does cannabis use amplify the effect of prenatal alcohol exposure and vice versa?

An unforeseen consequence of normalization of marijuana use is that adolescents and adults of childbearing age are increasingly engaged in a practice of Simultaneous Alcohol and Cannabinoid (SAC) use, or co-ingestion. A recent U.S. hospital-based assessment revealed that at the time of birth, about 22% of assessed umbilical cords were positive for marijuana.

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