現有的藥袋圖示呈現內容分歧，相似符號在不同醫院代表的意義並不相同，容易造成用藥混淆。高齡者因老化產生知覺及認知退化，藥袋圖示的設計更應以高齡者角度，討論圖示特徵，並提出較適合高齡者及多數使用者的藥袋圖示組合，本研究目的在於調查適合高齡者及主要照顧者閱讀的圖示符號，以減少用藥誤判，促進高齡者用藥遵從性。根據問卷結果與訪談可得知，使用者對服藥時間與現行藥袋圖示配合已經有其規律，表現服藥時間的圖示以自然物件最被接受，早上 -公雞、中午 -太陽、晚上 -月亮、睡前-人躺在床鋪上；此組合與國際間使用的象徵符號接近。受限於高齡者的視力狀況，圖形與背景顏色太相近、月形符號的缺口過小、或線段間留白過少，均可能增加高齡者閱讀的負擔。現有圖示面臨的困境未必在於符徵的辨識，而須確認其意義聯結是否能對應使用者的認知，才能成為適用的藥袋圖示。本研究對於符徵與符旨的對應提出以下建議： 1. 圖形特徵應清晰可辨、與其象徵意義連結； 2. 避免挪用或使用意義模糊、或多重可能的圖示；3. 修改現行圖示、予以統一，避免過度創新的圖示或符號設計，以減少患者適應不同符號的負擔。

Existing Medicine Bag icon is not uniform. Similar symbols which represent different meaningsin different hospitalsmight cause confusion. Due to aging, the elderly people often experience perception and cognitive degradation. Therefore,the design of medication bag icon should not only put the needs of the elderly into consideration when discussing characteristics of medicine bag icon, but also create some icon combinations that are suitable for both elder people and other majority of people. The purpose of this study is to investigate a medicine bag icon combination, which is suitable for the elderly in order to reduce inaccurate use of medication and to enhance the elderpeople’s medical compliance. According to the results of the questionnaire and interviews, users haveformed their own habits in terms of drug consumption and usage following current medicine bag icons, that is, the icons that include natural objects used to representthe time of drug consumption were highly accepted. For example, the rooster icon demonstrated taking medicine in the mornings, the sun represented noon, whereas the moon icon meant evenings and individual-lying-in-bed explained medicine usage before bed.Thisicon combination was in most consistency with the symbols used internationally. Restricted to the elde's vision, conditions such aswhen the graphical color was too similar to its background color, the opening of the crescent symbol was not obvious, or when the segment blanks weretoo narrow could all increase the difficulty for the elders to read. The current difficulty to the design of icons was not the users’ ability to identify the symbols but whether the icon-meaning association matched users’ perception to be considered as applicable icons used on medicine bags. This study suggested the followings in ordertolink the corresponding signifier and the signified: 1. The graphical features should be easily identified and associatedwith what they represented; 2. Avoid misappropriation or use of illustrations that are vague in meanings, or contain multiple implications; 3. Modify and uniform existing icons, and avoid excessively innovative icons or symbols to reduce patients’ burden to adapt to different symbols.