非处方药品种繁多,如何准确选用呢?首先应明确自己的疾病,然后仔细阅读药品包装上的简介及说明书,因为药品说明书是介绍药品如何使用的重要依据之一。说明书通常包括药名、剂型、成分、结构、性状、药理作用与适应症、用法与用量、副反应、禁忌及注意事项、批号、有效期等。其中药名有正式品名(也称正名,即药品的化学名称)与商品名。有些药品名很相似,甚至仅一 Over-the-counter drugs, how to accurately select it? First of all should be clear about their own disease, and then carefully read the introduction of pharmaceutical packaging and manual, because the drug manual is an important basis for the introduction of how drugs are used. Manual usually includes the name of the drug, dosage form, composition, structure, traits, pharmacological effects and indications, usage and dosage, side effects, contraindications and precautions, lot number, expiration date. The name of the medicine has an official name (also known as the name, that is, the chemical name of the drug) and the trade name. Some medicines are similar in name or even only one