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Generic Name
Losartan potassium
Trade Name
Risk Category
  • Positive evidence of human fetal risk exists.
  • Potential benefits may warrant use of the drug in pregnant women despite potential risks (e.g. life threatening situations or serious illness).
The risk category is C in the first trimester.
FDA Pregnancy Risk Categories

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  • Angiotensin II receptor antagonist for treatment of hypertension.
  • Fetal Risk
    Fetal Risk
  • In animals it causes decreased fetal weight, increased pre- and post- natal death rate.
  • No data in human pregnancy but in general, all drugs which act directly on the renin-angiotensin system have been associated with fetal renal and skull defects (hypocalvaria), decreased renal perfusion, oligohydramnios and neonatal anuria and hypotension if used in second and third trimesters.
  • Breast Feeding
    Breast Feeding
  • No data available.
  • Excreted into milk in small amounts.
  • No adverse effects on nursing infant.
  • Other Trade Names
    The information on this Web site is not intended as a substitute for the advice and care of your doctor or other health-care provider. Always consult your doctor if you have any questions about exposures during pregnancy and lactation, and before you take any medications. Please read the Terms and Conditions before using this website.
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