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Ayurveda pharmacopoeia of Sri Lanka (APSL) is the legally recognized and officially published authentic source of the Ayurvedic pharmaceutical preparations in Sri Lanka. In APSL more than 500 internal preparations are mentioned with their formula, preparation method and dosage. Global attention on cinnamon is significantly increasing since it has been used in traditional medicine for the last millennia and scientifically proven for its efficacy on various ailments. The aim of this study was to analyze diversity of proportionate distributions of cinnamon and percentages in each formula prescribed for internal use as mentioned in APSL. Primary data were collected for APSL and scholarly opinions were consulted for analytical study. There are 76 formulae (15%) containing cinnamon recorded out of 500 internally prescribed preparations in APSL. Statistical analysis shows that 15 (24%) of Curna (max. 390mg and min. 20mg),11(68%) of Modaka (max. 692mg and min.10mg), 6(40%) of Kalka, (max. 160mg and min. 20mg), 8(88%) of Pindi (max. 625mg and min. 26mg) formulae contain cinnamon as an ingredient. Most of these preparations are prescribed to be taken twice a day and maximum cinnamon content was recorded as 692mg in single dose of Abhayadimodaka. The percentage of cinnamon in each formula was calculated and the highest (9.09%) was found in Haridra Khanda which is used for allergic conditions, while the lowest (0.98%) in was found in Vrhat YogarajaGuggulu. The average (68.42%) weight range of cinnamon in dosage forms is between 100mg – 300mg as recorded in 52 formulas. It is suggested that further analysis be conducted on the pharmaceutical utilities and application diversity of the studied sample of 76 cinnamon containing preparations in APSL.
