Nav Persaud, St. Michael's Hospital (IMAGE) St. Michael's Hospital Caption Previously unpublished research calls into question the efficacy of the most commonly prescribed medication for nausea in pregnancy. Information from the 1970s trial was published today in PLOS ONE by Dr. Nav Persaud, a family physician and researcher at St. Michael's Hospital in Toronto. Credit Courtesy of St. Michael's Hospital Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.