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Meaning [1] Latin (or Neo-Latin) origin [1] a.c. before meals: ante cibum a.d., ad, AD right ear auris dextra a.m., am, AM morning: ante meridiem: nocte every night Omne Nocte a.s., as, AS left ear auris sinistra a.u., au, AU both ears together or each ear aures unitas or auris uterque b.d.s, bds, BDS 2 times a day bis die sumendum b.i.d., bid, BID
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).
Term Description (notes) A.d. As directed bd/bid Twice a day gt One drop gtt drops GSL General sales list Gutt/g Guttae (drops) Meds Medications Nocte/QHS At night Occ Ointment od/QD Once a day otc Over the counter (bought medication) P Pharmacy (drug) POM Prescription-only medicine prn When required q Every (e.g. q2h – every two hours) qds/qid
OD or o.d., an abbreviation used in medical prescriptio; NHS for omne in die or "once daily" both meaning "take once every day" Doctor of Optometry (O.D.) Oculus dexter, ocular dexter, or ocularis dexter, meaning "right eye" in general ophthalmologic or optometric usage, particularly in eyeglass prescriptions
Pronunciation follows convention outside the medical field, in which acronyms are generally pronounced as if they were a word (JAMA, SIDS), initialisms are generally pronounced as individual letters (DNA, SSRI), and abbreviations generally use the expansion (soln. = "solution", sup. = "superior").
Meaning o: Nothing [ō—letter o with overbar] O 2: oxygen: OA: osteoarthritis: OAB: Overactive bladder: OAF: osteoclast activating factor OB: Occult blood OB OB-GYN ob-gyne: obstetrics and gynecology: Obl: oblique OBS: organic brain syndrome: Occ: occasional OCD: obsessive-compulsive disorder: OCG: oral cholecystogram: OCNA: Orthopedic ...
A drug overdose (overdose or OD) is the ingestion or application of a drug or other substance in quantities much greater than are recommended. [ 2 ] [ 3 ] Typically the term is applied for cases when a risk to health is a potential result. [ 2 ]
List of medical abbreviations: Overview; List of medical abbreviations: Latin abbreviations; List of abbreviations for medical organisations and personnel; List of abbreviations used in medical prescriptions; List of optometric abbreviations