(CNN) – The US Food and Drug Administration has placed its most serious warning – a so-called black-box warning – on a drug used to relieve menopausal hot flashes. The FDA says women who are taking Veozah may need more frequent blood testing to check for markers of liver problems.

In rare cases, the drug may seriously injure the liver, and patients with symptoms including fatigue, unusual itching, nausea, vomiting, light-colored stools, dark urine, or yellow skin or eyes should tell their doctors and stop taking the medication, the FDA said Tuesday in a drug safety communication. (Read More)