Nicotine replacement therapy for smoking cessation during pregnancy

Area of Science:

• Obstetrics and Gynecology
• Addiction Medicine
• Pharmacology

Background:

• Current Australian guidelines recommend nicotine replacement therapy (NRT) for pregnant smokers unable to quit unassisted.
• Clinicians exhibit low NRT prescribing rates during pregnancy due to safety concerns and confidence issues.
• While animal studies indicate fetal harm from nicotine, human studies show no adverse pregnancy or fetal outcomes.

Purpose of the Study:

• To review the efficacy and safety of NRT for smoking cessation in pregnant women.
• To address the gap in understanding optimal NRT dosing during pregnancy.
• To advocate for increased NRT use among pregnant smokers.

Main Methods:

• Review of existing literature on NRT use in pregnancy.
• Analysis of animal and human studies regarding nicotine's effects on fetal development.
• Examination of real-world effectiveness data for NRT in pregnant populations.

Main Results:

• Real-world studies indicate NRT use increases smoking cessation rates in pregnant women.
• Existing NRT dosages may be insufficient due to higher nicotine metabolism in pregnancy, inadequately treating withdrawal.
• NRT is demonstrably safer than continued smoking for both mother and fetus.

Conclusions:

• NRT is a safer alternative to smoking for pregnant women.
• Further research is required to establish optimal and potentially higher NRT dosages, including combination therapies.
• Clinicians should proactively offer NRT to all pregnant smokers, with guidance on initiation and dose titration.