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G. Sosne and E. A. Berger, Thymosin beta 4: A potential novel adjunct treatment for bacterial keratitis, Elsevier BV, May 2023. doi: 10.1016/j.intimp.2023.109953

Monitoring and follow-up: practical guidance For patients starting injections, baseline labs should include B12 level, complete blood count and, when indicated, renal function

If a pregnant patient has a documented deficiency of one or more B vitamins or a condition like hyperemesis that prevents oral intake, the benefits of correcting the deficiency (preventing serious maternal and fetal complications) outweigh any minimal risk from the injection