FDA NEWS RELEASE
For Immediate Release: April 8, 2013
Media Inquiries: Andrea Fischer, 301-796-0393, andrea.fischer@fda.hhs.gov or Stephanie Yao, 301-796-0394, stephanie.yao@fda.hhs.gov
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FDA approves Diclegis for pregnant women experiencing nausea and vomiting
The U.S. Food and Drug Administration today approved Diclegis (doxylamine succinate and pyridoxine hydrochloride) to treat pregnant women experiencing nausea and vomiting.
Diclegis is a delayed-release tablet intended for women who have not adequately responded to conservative management of nausea and vomiting during pregnancy, such as dietary and lifestyle modifications. These modifications include eating several small meals instead of three large meals, eating bland foods that are low in fat and easy to digest and avoiding smells that can trigger nausea.
“Many women experience nausea and vomiting during pregnancy, and sometimes these symptoms are not adequately managed through recommended changes in diet and lifestyle,” said Hylton V. Joffe, M.D., M.M.Sc., director of the Division of Reproductive and Urologic Products in the FDA’s Center for Drug Evaluation and Research. “Diclegis is now the only FDA-approved treatment for nausea and vomiting due to pregnancy, providing a therapeutic option for pregnant women seeking relief from these symptoms.”
Diclegis was studied in 261 women experiencing nausea and vomiting due to pregnancy. Study participants in the clinical trial were at least 18 years old and had been pregnant for at least 7 weeks and up to 14 weeks. Women were randomly assigned to receive two weeks of treatment with Diclegis or a placebo. The study results showed that women taking Diclegis experienced greater improvement in nausea and vomiting than those taking placebo. Additionally, observational (epidemiological) studies have shown that the combination of active ingredients in Diclegis does not pose an increased risk of harm to the fetus.
Diclegis is taken daily. Tablets must be taken whole on an empty stomach. The recommended starting dose is two tablets taken at bedtime. If symptoms are not adequately controlled, the dose can be increased to a maximum recommended dose of four tablets daily (one in the morning, one mid-afternoon and two at bedtime).
Nausea and vomiting due to pregnancy usually improve after the first trimester. Health care professionals should reassess their patients for continued need for Diclegis as pregnancy progresses.
Drowsiness or sleepiness, which can be severe, is the most common side effect reported by women taking Diclegis. Women should avoid using Diclegis when engaging in activities requiring mental alertness, such as driving or operating heavy machinery, until cleared to do so by their health care provider.
Diclegis is marketed by Duchesnay Inc., based in Blainville, Québec, Canada.
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