Conflict of Interest Declaration Here by the author(s) certify(s) that the manuscript entitled: Assessment of Haemopoietic Properties of Justicia secunda Ethanol Leaf Extract and Fractions in Mice is an original work and is not under review at any other publication. Author and all co-authors have seen and agreed with the contents of the manuscript and there is no financial interest to report. This manuscript is ready for publication in the International Journal of Integrated Health Sciences. Author (s) (please write your name with academic degree(s) and sign) 1st Author Name: Omo Eric Irinmwinuwa, BSc Signature: 2nd Author Name: Emeka Chinedu Ifediba, PhD Signature: 3rd Author Name: Joseph Oyindamola, MSc Signature: 4th Author Name: Onyenmechi Johnson Afonne, PhD, ERT Signature: Author’s data Title of manuscript: Assessment of Haemopoietic Properties of Justicia secunda Ethanol Leaf Extract and Fractions in Mice Enter the names of everyone who contributed to your manuscript by entering all required information. Author(s) 1st author First name: Omo Last name: Irinmwinuwa Academic degree(s): BSc Affiliation: Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Nigeria Address: Department of Pharmacology and Therapeutics, Faculty of Medicine, Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Nigeria Phone: +2347038910757 Email: ericirins@gmail.com 2nd author First name: Emeka Last name: Ifediba Academic degree(s): PhD Affiliation: Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Nigeria Address: Department of Pharmacology and Therapeutics, Faculty of Medicine, Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Nigeria Phone: +2348034459936 Email: ec.ifediba@unizik.edu.ng 3rd Author First name: Joseph Last name: Oyindamola Academic degree(s): BSc Affiliation: Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Nigeria Address: Department of Pharmacology and Therapeutics, Faculty of Medicine, Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Nigeria Phone: +2347066575641 Email: joyins2001@gmail.com 4th Author First name: Onyenmechi Last name: Afonne Academic degree(s): PhD, ERT Affiliation: Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Nigeria Address: Department of Pharmacology and Therapeutics, Faculty of Medicine, Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Nigeria Phone: +2348037973397 Email: oj.afonne@unizik.edu.ng Cover letter Date: 30th May 2022 To: Editor in Chief International Journal of Integrated Health and Science Dear Sir, Please find the submission of our manuscript, Assessment of Haemopoietic Properties of Justicia secunda Ethanol Leaf Extract and Fractions in Mice, which we would like to submit for publication in the International Journal of Integrated Health Science. In this manuscript, we assessed the haemopoietic properties of the ethanol leaf extract and fractions of Justicia secunda in mice. The study showed that the ethyl acetate fraction of J. secunda leaf possesses significant haemopoietic effect in comparison to the standard drugs, ferric sulphate and vitamin B12. Author and all co-authors have seen and agreed with the contents of the manuscript and there is no financial interest to report. We certify that the manuscript submitted is an original work and is not under review at any other publication. We thank you for considering our manuscript for publication in the International Journal of Integrated Health Science and look forward to hearing from you at your earliest convenience. Sincerely yours, Corresponding author Prospective Reviewer I hereby suggest prospective reviewer(s) to International Journal of Integrated Health Sciences (IJIHS) by filling in all required information: Reviewer 1 Full name with academic degree(s): Anthonet Ndidiamaka Ezejiofor, PhD Affiliation/institution: University of Port Harcourt, Port Harcourt, Nigeria Email: ndidiezejiofor@yahoo.com Expertise: Pharmacology and Toxicology Reviewer 2 Full name with academic degree(s): Ejeatuluchukwu Obi, PhD Affiliation/institution: Nnamdi Azikiwe University, Awka, Nigeria Email: e.obi@unizik.edu.ng Expertise: Biochemical Pharmacology