Dear Kathleen, >Nowhere is it stated that a side effect of this drug is sudden infant death >syndrome. My edition is 1995 Fourth Edition. I do not recognize the source >you have quoted, but I am concerned that this reference to SIDS is made. Is >it substantiated by any studies? The reference from which I excerpted material on promethazine is a consumer health reference. As such, it does not have a bibliography online. I am contacting the publisher to request the reference for the SIDS link, and will both post it and e-mail it to you when I receive it. Jonathan