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Updated: Jul 19, 2026
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Isolation and Quantification of Botulinum Neurotoxin From Complex Matrices Using the BoTest Matrix Assays
Published on: March 3, 2014
Botulinum toxin and pregnancy.
1Dermatology Cosmetic Center Federal University of São Paulo, Brazil. erica@dermatologia.com.br
Skinmed
|November 7, 2006
Summary
Botulinum toxin type A injections during early pregnancy did not result in adverse effects for two women and their healthy newborns. This suggests potential safety for incidental first-trimester exposure in cosmetic procedures.
Area of Science:
- Obstetrics and Gynecology
- Dermatology
- Toxicology
Background:
- Botulinum toxin type A is increasingly used in cosmetic procedures.
- Accidental exposure during pregnancy is possible.
- Limited data exists on the safety of botulinum toxin type A during early pregnancy.
Observation:
- Two pregnant women received botulinum toxin type A injections in the first trimester, unaware of their pregnancies.
- Patient 1 received 54 units for periorbital lines at 6 weeks gestation.
- Patient 2 received 65 units for facial dynamic lines at 5 weeks gestation.
Findings:
- Both patients delivered healthy, full-term babies via cesarean section.
- Apgar scores for both infants were 9/10.
- No complications or detectable adverse fetal effects were observed in either case.
Implications:
- Incidental, single-dose exposure to botulinum toxin type A in the first trimester may not pose a significant risk to fetal development.
- Further research is warranted to establish definitive safety guidelines.
- This case series provides preliminary evidence for managing accidental exposures in pregnant patients undergoing cosmetic treatments.
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