Ryu JE. Effect of maternal caffeine consumption on heart rate and sleep time of breast-fed infants. Dev Pharmacol Ther. 1985;8:355-63.

Tyrala EE, Dodson WE. Caffeine secretion into breast milk. Arch Dis Child. 1979;54:787-9.

Oo CY, Burgio DE, Kuhn RC, Desai N, McNamara PJ. Pharmacokinetics of caffeine and its demethylated metabolites in lactation: predictions of milk to serum concentration ratios. Pharm Res. 1995;12:313-6.

Stavchansky S, Combs A, Sagraves R, Delgado M, Joshi A. Pharmacokinetics of caffeine in breast milk and plasma after single oral administration of caffeine to lactating mothers. Biopharm Drug Dispos. 1988;9:285-99.

Bailey DN, Weibert RT, Naylor AJ, Shaw RF. A study of salicylate and caffeine excretion in the breast milk of two nursing mothers. J Anal Toxicol. 1982;6:64-8.

Clement MI . Caffeine and babies . BMJ. 1989 MAY 27;298:1461.

Rustin J . Caffeine and babies. BMJ. 1989 JULY 8;299:121.

McCreedy A, Bird S, Brown LJ, Shaw-Stewart J, Chen YF. Effects of maternal caffeine consumption on the breastfed child: a systematic review. Swiss Med Wkly. 2018;148(28):w14665.

Findlay JW, DeAngelis RL, Kearney MF, Welch RM, Findlay JM. Analgesic drugs in breast milk and plasma. Clin Pharmacol Ther 1981;29(5):625-633.

Meny RG, Naumburg EG, Alger LS, Brill-Miller JL, Brown S. Codeine and the breastfed neonate. J Hum Lact 1993;9(4):237-240.

Madadi P, Ross CJ, Hayden MR, Carleton BC, Gaedigk A, Leeder JS et al. Pharmacogenetics of neonatal opioid toxicity following maternal use of codeine during breastfeeding: a case-control study. Clin Pharmacol Ther 2009;85(1):31-35.

Ito S, Blajchman A, Stephenson M, Eliopoulos C, Koren G. Prospective follow-up of adverse reactions in breast-fed infants exposed to maternal medication. Am J Obstet Gynecol 1993; (168): 1393-1399.

Davis JM, Bhutari UK. Neonatal apnea and maternal codeine use. Pediatr Res 1984;19:170A.

Naumburg EG, Meny RG. Unexplained neonatal apnea, bradycardia, cyanosis, an association with opioids in breast milk. Clin Res 1987;35(1):79A.

Koren G, Cairns J, Chitayat D, Gaedigk A, Leeder SJ. Pharmacogenetics of morphine poisoning in a breastfed neonate of a codeine-prescribed mother. Lancet 2006;368(9536):704.

Smith JW. Codeine-induced bradycardia in a breast-fed infant. Clin Res 1982;30:259A. Abstract.

Ciszkowski C, Madadi P, Sistonen J et al. The incidence of CNS depression of neonates breastfed by mothers receiving codeine for postpartum analgesia. Clin Pharmacol Ther. 2011;89 (Suppl 1)(1):S94.

Lam J, Matlow JN, Ross CJ, Hayden MR, Carleton BC, Madadi P. Postpartum maternal codeine therapy and the risk of adverse neonatal outcomes: the devil is in the details. Ther Drug Monit. 2012;34(4):378-80.

Datta P, Rewers-Felkins K, Kallem RR, Baker T, Hale TW. Transfer of Low Dose Aspirin Into Human Milk. J Hum Lact. 2017;33(2):296-299.

Bailey DN, Weibert RT, Naylor AJ, Shaw RF. A study of salicylate and caffeine excretion in the breast milk of two nursing mothers. J Anal Toxicol. 1982;6:64-8.

Findlay JW, DeAngelis RL, Kearney MF, Welch RM, Findlay JM. Analgesic drugs in breast milk and plasma. Clin Pharmacol Ther 1981;29(5):625-633.

Jamali F, Keshavarz E. Salicylate excretion in breast milk. Int J Pharm. 1981;8:285-290.

Unsworth J, d'Assis-Fonseca A, Beswick DT, Blake DR. Serum salicylate levels in a breast fed infant. Ann Rheum Dis. 1987;46(8):638-9.

Clark JH, Wilson WG. A 16-day-old breast-fed infant with metabolic acidosis caused by salicylate.Clin Pediatr (Phila). 1981 Jan;20(1):53-4.

Ito S, Blajchman A, Stephenson M, Eliopoulos C, Koren G. Prospective follow-up of adverse reactions in breast-fed infants exposed to maternal medication. Am J Obstet Gynecol 1993; (168): 1393-1399.

HARLEY JD, ROBIN H. "Late" neonatal jaundice in infants with glucose-6-phosphate dehydrogenase-deficient erythrocytes. Australas Ann Med. 1962;11:148-55.

Erickson SH, Oppenheim GL. Aspirin in breast milk. J Fam Pract. 1979;8(1):189-90.