This is a list of abbreviations used in medical prescriptions , including hospital orders (the patient-directed part of which is referred to as sig codes). This list does not include abbreviations for pharmaceuticals or drug name suffixes such as CD, CR, ER, XT (See Time release technology § List of abbreviations for those). Learn the meaning of OD, BD , TDS, and SOS in medical prescriptions . Understand their importance in medication schedules for safe and effective treatment. Understanding the meaning of “ bd ” in medical prescriptions is essential for both healthcare professionals and patients to ensure proper adherence to the prescribed medication regimen. Want to read eye prescription chart? Like what is axis in eye prescription or cyl in eye prescription ? Here you go. Many Centuries ago, all the prescriptions were written in Latin words. Prescription Abbreviations are also known as Pharmacy Sig Codes in Pharmaceutical Sciences. Nowadays these prescription abbreviations are only used for the drug’s directions. Medical practitioners or physicians use this prescription in short form or Sig codes. The Pharmacists need to remember all the pharmacy sig codes listed. Recently Doctor prescription abbreviations in India have been started electronically, so the ...