Formulae of Internal Medicine II (IM Formulae II) is a calculator which provides common formulae and scores used in the daily practice of internal medicine. Diseases covered include renal failure, liver cirrhosis, stroke and inflammatory bowel disease etc. And they are categorized according to the subspecialties. App written by Dr. Rudolf Lam. Formulae/Scores currently available: 1) Cyclosporine A drug level (AUC)2) Tacrolimus drug level (AUC)3) MDRD Formula - eGFR4) MELD Score5) Child-Pugh Score6) Maddreys Discriminant Function7) CHA2DS2-VASc Score8) Ransons Criteria9) Corrected Calcium10) Autoimmune Hepatitis Score11) Crohns Disease Activity Index12) QTc Interval13) ABCD2 TIA Score14) TIMI Score15) HAS BLED Score16) TTKG17) Glasgow Alcoholic Hepatitis Score18) Lille Model19) NAFLD Fibrosis Score20) Ganzoni Formula (Total iron deficit)21) Mayo Score for Ulcerative Colitis Activity22) Free serum copper (Non-ceruloplasmin-bound copper)23) AST to Platelet Ratio Index (APRI)24) Ulcerative Colitis Endoscopic Index of Severity (UCEIS)25) Harvey-Bradshaw index (HBI)26) Asia-Pacific Colorectal Screening (APCS) score27) Cockcroft-Gault Formula28) Glasgow-Blatchford Bleeding Score