Dicyclominehas not been well studied during breastfeeding. However, one possible case of apnea has been reported in a breastfed infant that is similar to reactions that have occurred in infants given the drug directly.Dicyclomineshould not be used during lactation.
Relevant published information was not found as of the revision date. However, the manufacturer reported a mother who was given a single 20 mg dose of dicyclomine orally. Two hours after the dose, the concentration in breastmilk was 131 mcg/L.
Relevant published information was not found as of the revision date.
Effects in Breastfed Infants:
Relevant published information was not found as of the revision date. The manufacturer reported a breastfed infant who developed apnea during maternal therapy with dicyclomine .Dicyclomineis a possible cause of the reaction.
Possible Effects on Lactation:
Relevant published information in nursing mothers was not found as of the revision date. Anticholinergics can inhibit lactation in animals, apparently by inhibiting growth hormone and oxytocin secretion. Anticholinergic drugs can also reduce serum prolactin in nonnursing women. The prolactin level in a mother with established lactation may not affect her ability to breastfeed.
1. Briggs GG, Freeman RK, Yaffe SJ . Drugs in pregnancy and lactation, 7 th ed. Baltimore. Williams & Wilkins. 2005. 2. Aaron DK, Ely DG, Deweese WP et al. Reducing milk production in ewes at weaning using restricted feeding and methscopolamine bromide. J Anim Sci. 1997;75:1434-42. PMID:9250502 3. Powell MR, Keisler DH. A potential strategy for decreasing milk production in the ewe at weaning using a growth hormone release blocker. J Anim Sci. 1995;73:1901-5. PMID:7592071 4. Daniel JA, Thomas MG, Powell MR, Keisler DH. Methscopolamine bromide blocks hypothalmic-stimulated release of growth hormone in ewes. J Anim Sci. 1997;75:1359-62. PMID:9159285 5. Bizzarro A, Iannucci F, Tolino A et al. Inhibiting effect of atropine on prolactin blood levels after stimulation with TRH. Clin Exp Obstet Gynecol. 1980;7:108-11. PMID:6788407 6. Svennersten K, Nelson L, Juvnas-Moberg K. Atropinization decreases oxytocin secretion in dairy cows. Acta Physiol Scand. 1992;145:193-4. PMID:1636447 7. Masala A, Alagna S, Devilla L et al. Muscarinic receptor blockade by pirenzepine: effect on prolactin secretion in man. J Endocrinol Invest. 1982;5:53-5. PMID:6808052
CAS Registry Number:
LactMed Record Number:
Last Revision Date:
Disclaimer:Information presented in this database is not meant as a substitute for professional judgment. You should consult your healthcare provider for breastfeeding advice related to your particular situation. The U.S. government does not warrant or assume any liability or responsibility for the accuracy or completeness of the information on this Site.