Liga 于一九二五年九月十日由九个国家的十四位和疗医学医生在鹿特丹成立。美国博士Roy ・ Upham是它的第一位主席。LMHI在瑞士民法条件下建立，并以日內瓦作为它的注册处。
1. 学会会员： 全国和疗医学组织和机关。
2. 个別正式会员： 拥有由州大學或其他被政府认可的发放牌照机构所颁发的正式医疗兽医或牙医资格的医生、兽医或牙医，而他們已接受过有关和疗医学的教育並取得协会认可的文凭，拥有投票权。
3. 附属会员: 所有拥有被国家认可资格及已接受被LMHI認可的和疗医学训练的人，包括药剂师，医科学生、化学家以及所有持有执照的提供保健服务者如自然疗者，见习护士， 医生助理，和其他可贡献給和疗医学的专业人士，如科學家，研究員和作者，他們不拥有投票权。
The Liga: At a glance
In Rotterdam on 10 September 1925 by fourteen homeopathic physicians from nine countries. The American Dr. Roy Upham was its first President. The LMHI was established under the terms of Swiss civil law with Geneva designated as its registered office.
“ . . . the development and securing of Homœopathy worldwide . . . the creation of a link between homœopaths with medical diplomas and between societies and persons who are interested in homœopathy.”
Institutional Members: National homeopathic organizations and institutions.
Individual Full Members: physical persons that are physicians, veterinary surgeons and dentists with a full medical veterinarian or dental qualification of a State University or any other Licensing authority duly recognized by the government of the country in which they practice and who have had special education in homœopathy and hold any kind of diploma recognized by the association. Voting.
Associate Members: all persons with qualifications recognized nationally, who have undertaken homœopathic training recognized by the LMHI, such as pharmacists, medical students, chemists, and all persons who are licensed healthcare providers such as naturopaths, nurse practitioners, physicians’ assistants, and generally, persons who by their profession can contribute to homœopathy, such as scientists, researchers, and authors. Nonvoting.