Here is another recent case study.
Novel Lactation Induction Protocol for a Transgender Woman Wishing to Breastfeed: A Case Report
Esme D. Trahair, Sarah Kokosa, Andy Weinhold, Heather Parnell, Andrea B. Dotson, and Carly E. Kelley
27 March 2024
https://www.liebertpub.com/doi/full/10.1089/bfm.2024.0012
Background: Lactation induction in transgender women is a clinical and research priority in the field of breastfeeding medicine. To date, there are four case reports detailing successful induced lactation in transgender patients who wished to breastfeed. The Academy of Breast Feeding Medicine does not formally recommend a specific medication regimen for transgender patients due to lack of high-quality research.
Case Presentation: A 50-year-old transgender woman with a hypercoagulable disorder who was able to lactate and breastfeed with novel hormone regimen management at a gender care clinic. Her baseline hormone treatment was an estradiol 0.3 mg transdermal patch every 72 hours and micronized progesterone 200 mg daily.
Results: Within four weeks of initiating a modified hormone regimen (estradiol 0.4 mg patch every 72 hours, progesterone 300 mg daily, metoclopramide 10 mg three times daily), the patient was lactating spontaneously. On multiple occasions, she breastfed and expressed up to 30 mL of milk through pumping.
Conclusion: This report offers a new effective hormone regimen for transgender patients who wish to lactate and cannot access domperidone—the galactagogue used in previous case reports. It also provides a review of previously published case reports on this subject. Future research in this field should prioritize cohort studies of transgender patients who desire lactation to further assess patient attitudes, experiences, and outcomes.
Some more background on this:
https://x.com/millihill/status/1773343604678758886?s=20
The patient first expressed the unique desire to breastfeed her expected grandchild at an appointment with her endocrinologist in the spring of 2022. She disclosed that this was a last-minute idea that came to her very close to her daughter's due date. Her primary motivation for inducing lactation was to experience the bond from breastfeeding that she had not been able to experience with her own five children.
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Remember, by 7 days old an infant requires 65 ml per day.
https://www.babycentre.co.uk/x553873/how-much-milk-does-my-baby-need-in-the-first-few-days