capsules (Ranitidine and Roxithromycin pair in the highest frequency) (Table 5), 944 were injections (Diazepam injection and Furosemide injection pair in the
highest frequency) (Table 6), 307 were liquid dosage forms (Alum milk and Milk of magnesia pair in the highest frequency) (Table 7), 367 were external drugs (0.02% Triamcinolone cream and 0.1% Triamcinolone cream pair in the highest frequency) (Table 8) and 14 pairs were
The most frequently occurring similarity was LASA stemming from similar spelling or pronunciation, as shown in Table 2. From the surveyed medication error categories, category B error occurred but did not reach the patient and was most prevalently reported (Table 3). No category I (fatal) errors were reported. Harmful medication errors (category F, G) are shown in Table 4. From all the reported drugs, 3,695 pairs were tablets/