The same patient needs each signature to write more than one prescription. According to relevant information: each prescription is limited to one patient, and the handwriting is clear and cannot be altered. If it is necessary to modify, it should be signed at the modification place and indicate the date of modification. When prescribing, the patient's condition and clinical diagnosis should be clearly and completely filled in, which is consistent with the medical record. The name, dosage, specifications, usage and dosage of drugs should be accurate and standardized. The usage of drugs can be written in standardized Chinese, English, Latin or abbreviations, but ambiguous words such as "according to doctor's advice" and "personal use" are not allowed.