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. Author manuscript; available in PMC: 2024 Jun 1.
Published in final edited form as: J Clin Pharmacol. 2023 Jun;63(Suppl 1):S137–S158. doi: 10.1002/jcph.2282

Table 3.

Maternal plasma/serum and cord blood concentrations of fluoxetine and norfluoxetine

Fluoxetine Norfluoxetine

Study N Dose (mg/d) Study Location Maternal Concentration at Delivery (ng/mL) Cord Concentration at Delivery (ng/mL) Cord: Maternal Ratio Maternal Concentration at Delivery (ng/mL) Cord Concentration at Delivery (ng/mL) Cord: Maternal Ratio
Rampono, et al. (2004) 31 4 20–40 Australia 96 (56–199) 65(52–149) 0.67 (0.61–0.75) 110 (20–252) 81 (8–252) 0.72 (0.4–1)
Sit, et al. (2011) 38 4 10–40a USA 51.7 (31.3–162) 26.7 (20–89.1) 0.55 (0.50–0.64) 94.7 (12.7–127.5) 54.9 (8.7–76) 0.43 (0.48–0.7)
Rampono, et al. (2009) 36 2 30 Australia 52; 192 37; 141 0.71; 0.73 126; 52 99; 226 0.77; 0.79
Hendrick, et al. (2003) 29 15 10–60a USA 45.3 (13–274) 26 (6–262) 0.54 (0.32–1.36) 126 (30–388) 62 (18–213) 0.6 (0.12–1.6)
Kim, et al. (2006) 48,b 9 10–30 British Columbia 38.5 (15.1, 62.1) 41.3 (16.9, 59.8)) 0.91 (0.60, 1.02) 74.6 (41.7, 107.4) 78.5 (42.3, 114.6) 1.04 (0.93, 1.15)
Heikkinen, et al. (2003) 47 11 20–40 Finland 56.9 ± 37.8 34.6 ± 23.2 0.61 91.5 ± 30.1 61.7 ± 23.3 0.67
Colombo, et al. (2020) 40,d 4e 25 (20–30) Italy 147; 216.8 152; 108.6 1.03; 0.5
a

Concentrations are dose-corrected to 20 mg dose

b

Reported as mean (95% CI)

c

Reported as mean±SD (range)

d

Reported as median (range)

e

Concentration at delivery only available from 3 subjects, with 1 below LOQ