1. KK Women’s and Children’s Hospital (KKH) — Nausea and Vomiting in https://www.kkh.com.sg/patient-care/conditions-treatments/nausea-and-vomiting-in-pregnancy Accessed November 07, 2025
2. Ministry of Health (MOH), Singapore — Guidance on Use of Medicines During Pregnancy and Breastfeeding https://www.moh.gov.sg/ Accessed November 07, 2025
3. Health Sciences Authority (HSA) — Drug Information and Safety Updates https://www.hsa.gov.sg/ Accessed November 07, 2025
4. U.S. Food and Drug Administration (FDA) — Pregnancy and Lactation Labeling (Drugs) Final Rule (PLLR) https://www.fda.gov/drugs/labeling/pregnancy-and-lactation-labeling-drugs-final-rule Accessed November 07, 2025
5. U.S. FDA — Content and Format of Labeling for Human Prescription Drug and Biological Products; Requirements for Pregnancy and Lactation Labeling https://www.ecfr.gov/current/title-21/chapter-I/subchapter-D/part-201/subpart-C/section-201.57 Accessed November 07, 2025
6. World Health Organization (WHO) — Safe Medication Use in Pregnancy and Breastfeeding https://www.who.int/publications/i/item/9789241508981 Accessed November 07, 2025