The Basics
What is Urea C 14?
Used to diagnose stomach ulcers caused by the bacteria Helicobacter pylori or H. pylori.
Brand names for Urea C 14
Na
How Urea C 14 is classified
Radiopharmaceuticals, Carbon Radioisotopes, Urea, Diagnostic Agents
Urea C 14 During Pregnancy
Urea C 14 pregnancy category
Category N/ANote that the FDA has deprecated the use of pregnancy categories, so for some medications, this information isn’t available. We still think it’s useful to list historical info, however, given what a common proxy this has been in the past.
What we know about taking Urea C 14 while pregnant
N/A
Taking Urea C 14 While Breastfeeding
What are recommendations for lactation if you're taking Urea C 14?
Information in this record refers to the use of urea C14 as a diagnostic agent. No information is available on the use of urea C14 during breastfeeding. However, administration of urea C14 directly to pediatric patients is considered to be safe.[1] The International Commission on Radiological Protection recommends that breastfeeding need not be interrupted after administration of urea C14.[2]
Maternal / infant drug levels
Information in this record refers to the use of urea C14 as a diagnostic agent. No information is available on the use of urea C14 during breastfeeding. However, administration of urea C14 directly to pediatric patients is considered to be safe.[1] The International Commission on Radiological Protection recommends that breastfeeding need not be interrupted after administration of urea C14.[2]
Possible effects of Urea C 14 on milk supply
Relevant published information was not found as of the revision date.
Possible alternatives to Urea C 14
Urea C 13.
List of References
Lactation sources: Drugs and Lactation Database (LactMed) [Internet]. Bethesda (MD): National Library of Medicine (US); 2006-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK501922/1. Pathak CM, Kaur B, Khanduja K . 14C-urea breath test is safe for pediatric patients. Nucl Med Commun. 2010;31:830-5. PMID: 20864821
2. Mattsson S, Johansson L, Leide Svegborn S et al. Radiation dose to patients from radiopharmaceuticals: A compendium of current information related to frequently used substances. Annex D. Recommendations on breast-feeding interruptions. Ann ICRP. 2015;44 (2 Suppl):319-21. PMID: 26069086
Disclaimer: This material is provided for educational purposes only and is not intended for medical advice, diagnosis, or treatment. Consult your healthcare provider with any questions.
