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Brompheniramine / pseudoephedrine Pregnancy and Breastfeeding Warnings

Brompheniramine / pseudoephedrine is also known as: Allent, B-Vex PD, Bidhist-D, Brofed, Bromaline, Bromfed PD, Bromfed SR, Bromhist Pediatric, Brotapp, BroveX PD, BroveX PSB, BroveX PSE, Dimaphen, Dimetapp Elixir, Endafed, LoHist PSB, Lodrane, Lodrane 12D, Lodrane D, Lodrane LD, Rynex PSE, Shellcap, Shellcap PD, Sildec, Touro A&H

Medically reviewed by Last updated on Jan 9, 2019.

Brompheniramine / pseudoephedrine Pregnancy Warnings


The Collaborative Perinatal Project monitored 65 first trimester exposures to brompheniramine. Malformations were reported in 10 infants, a statistically significant association. In another 6509 live births, 172 mothers were exposed to Dimetapp (brompheniramine, phenylephrine and phenylpropanolamine). Five infants were born with congenital abnormalities resulting in a somewhat higher frequency than normal.


A case-controlled surveillance study reported an elevated relative risk (3.2) of gastroschisis with first-trimester pseudoephedrine use in 76 cases. Relative risks for other drugs were 1.6 for salicylates, 1.7 for acetaminophen, 1.3 for ibuprofen, and 1.5 for phenylpropanolamine (not significant). The authors hypothesized vascular disruption was the etiology of gastroschisis. A second group of 416 infants with heterogeneous defects suspected to have a vascular etiology was reviewed. There was no increased risk associated with salicylates, ibuprofen, pseudoephedrine, phenylpropanolamine and other decongestants. These data require independent confirmation.

In a review of 229,101 deliveries to Michigan Medicaid patients, 940 first-trimester exposures to pseudoephedrine and 1919 exposures anytime during pregnancy were recorded. A total of 37 birth defects were reported with first-trimester exposure (40 expected) and included (observed/expected) 3/9 cardiovascular defects, 2 oral clefts, and 3/2 polydactyly. These researchers reviewed nine cases of abdominal wall defects in the 1980-1983 Medicaid data compared to 3752 pseudoephedrine-exposed pregnancies, providing a relative risk of 1.8. Seven of the nine cases had been exposed to pseudoephedrine and of these only one case was a surgically treated abdominal wall defect. (written communication, Franz Rosa, MD, Food and Drug Administration, 1994)

The Collaborative Perinatal Project monitored 50,282 mother-child pairs. Only 39 first-trimester exposures to pseudoephedrine were recorded, with one birth defect observed. For use anytime during pregnancy, 194 exposures were recorded with 3 birth defects observed (3.22 expected).

The effect of pseudoephedrine on uterine and fetal blood was studied in 12 healthy pregnant women between 26 and 40 weeks gestation. Following a single 60 mg dose of pseudoephedrine, no significant effect was seen on fetal heart rate, uterine blood flow, or fetal aortic blood flow.

Brompheniramine-pseudoephedrine has been assigned to pregnancy category C by the FDA. Animal reproduction studies have not been performed on brompheniramine-pseudoephedrine. There are no controlled data in human pregnancy. Brompheniramine-pseudoephedrine should only be given during pregnancy when benefits outweigh risks.

See references

Brompheniramine / pseudoephedrine Breastfeeding Warnings

Brompheniramine-pseudoephedrine is excreted into human milk. Because of the higher than usual risk for infants from sympathomimetic amines, use of this product by nursing mothers is contraindicated.

See references

References for pregnancy information

  1. "Product Information. AccuHist Drops (brompheniramine-pseudoephedrine)." PediaMed Pharmaceuticals Inc, Florence, KY.
  2. Heinonen O, Slone D, Shapiro S; Kaufman DW ed. "Birth Defects and Drugs in Pregnancy." Littleton, MA: Publishing Sciences Group, Inc. (1977): 297
  3. "Product Information. Histex SR (brompheniramine-pseudoephedrine)." Teamm Pharmaceuticals Inc, Morrisville, NC.
  4. Aselton P, Jick H, Milunsky A, Hunter JR, Stergachis A "First-trimester drug use and congenital disorders." Obstet Gynecol 65 (1985): 451-5
  5. Smith CV, Rayburn WF, Anderson JC, Duckworth AF, Appel LL "Effect of a single dose of oral pseudoephedrine on uterine and fetal Doppler blood flow." Obstet Gynecol 76 (1990): 803-6
  6. "Product Information. Seldane D (pseudoephedrine-terfenadine)." Hoechst Marion-Roussel Inc, Kansas City, MO.
  7. Werler MM, Mitchell AA, Shapiro S "First trimester maternal medication use in relation to gastroschisis." Teratology 45 (1992): 361-7
  8. "Product Information. Dimetane (brompheniramine)." Wyeth-Ayerst Laboratories, Philadelphia, PA.

References for breastfeeding information

  1. "Product Information. Histex SR (brompheniramine-pseudoephedrine)." Teamm Pharmaceuticals Inc, Morrisville, NC.
  2. "Product Information. AccuHist Drops (brompheniramine-pseudoephedrine)." PediaMed Pharmaceuticals Inc, Florence, KY.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.