The American Homœopathic Pharmacopœia, co-authored by Francis Edmund Boericke and A.J. Tafel, is a foundational reference for homeopathic practitioners in the United States. First published in the late 19th century, it provides detailed guidelines for the preparation, dilution, and use of homeopathic remedies. The pharmacopoeia aims to standardize and ensure the quality of homeopathic medicines. Its comprehensive nature supports the practice of homeopathy by offering precise formulations and methods.