Is Valium (Diazepam) Safe During Pregnancy?

What does the evidence say about valium during pregnancy?

1. MotherToBaby reports that older studies suggested less than a 1 percent increase in cleft lip or palate, but larger and better-designed studies have not confirmed that signal. It also warns that stopping diazepam suddenly can cause withdrawal and that a supervised taper may be needed. 1
2. The current diazepam label warns that continued use can cause physical dependence and abrupt discontinuation can cause life-threatening withdrawal, including seizures. Exposure late in pregnancy can cause neonatal sedation or withdrawal, so newborn observation should be planned. 2
3. A United Kingdom cohort included 1,159 first-trimester diazepam-exposed live births. Major congenital anomalies occurred in 2.7 percent of both the diazepam group and an unexposed group, with an adjusted odds ratio of 1.02 and a wide 99 percent confidence interval of 0.63 to 1.64. 3
4. A South Korean cohort of more than 3 million live births found small statistically significant increases in overall and heart malformations for first-trimester benzodiazepine exposure, with higher estimates at doses above 2.5 milligrams daily in lorazepam equivalents. These were class-level, not diazepam-only, results. 4
5. LactMed reports that diazepam and its active metabolite can accumulate in breastfed infants during repeated maternal use because of long half-lives. After a single dose, interruption is usually unnecessary, but repeated use calls for monitoring infant sedation, feeding, and weight gain. 5

Is valium safe in each trimester?

• First trimester. Older reports suggested a cleft signal, but larger and better-designed studies have not confirmed that specific association. A large United Kingdom diazepam cohort did not show a significant major-malformation increase, while a broader benzodiazepine cohort found small class-level associations. Review the exact indication, dose, frequency, and other medicines with the prescriber.
• Second trimester. If diazepam remains necessary, the prescriber should periodically reassess the indication, dose, duration, sedation, and combinations with opioids or other central nervous system depressants. Physical dependence can develop with continued use, so any reduction needs a supervised taper rather than abrupt discontinuation.
• Third trimester. Use close to delivery can lead to newborn sedation, low muscle tone, breathing or feeding difficulty, or withdrawal signs. Make sure obstetric and newborn teams know the dose and last-use pattern. A planned taper, when appropriate, must be individualized because abrupt reduction can cause severe maternal withdrawal, including seizures.