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Why Would A Doctor Prescribe Vitamin D

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Why Would A Doctor Prescribe Vitamin D

Health-care communication from a physician to a pharmacist.

The prescription symbol, ℞, as printed on the blister pack of a prescription drug

A prescription, often abbreviated ℞ or Rx, is a formal communication from a physician or other registered health-care professional to a pharmacist, authorizing them to dispense a specific prescription drug for a specific patient. Historically, it was a physician's instruction to an apothecary listing the materials to be compounded into a treatment—the symbol ℞ (a capital letter R, crossed to indicate abbreviation) comes from the first word of a medieval prescription, Latin: Recipere (Take thou), that gave the list of the materials to be compounded.

Format and definition [edit]

℞

Medical prescription
In Unicode U+211E ℞ PRESCRIPTION TAKE (HTML℞· ℞)
Related
See also U+2695 ⚕ STAFF OF AESCULAPIUS

The symbol "℞", sometimes transliterated as "Rx" or "Rx", is recorded in 16th century manuscripts as an abbreviation of the late Latin instruction recipe, meaning 'receive'.[1] [a] Originally abbreviated Rc, the later convention of using a slash to indicate abbreviation resulted in an R with a straight stroke through its right "leg".[1] [b] [c] Medieval prescriptions invariably began with the instruction from the physician to the apothecary to "take" certain materials and compound them in specified ways.[6]

For a communication to be accepted as a legal medical prescription, it needs to be filed by a qualified dentist, advanced practice nurse, physician, psychiatrist, surgeon or veterinarian, for whom the medication prescribed is within their scope of practice to prescribe.[ citation needed ] This is regardless of whether the prescription includes prescription drugs, controlled substances or over-the-counter treatments.[ citation needed ]

Prescriptions may be entered into an electronic medical record system and transmitted electronically to a pharmacy. Alternatively, a prescription may be handwritten on preprinted prescription forms that have been assembled into pads, or printed onto similar forms using a computer printer or even on plain paper according to the circumstance. In some cases, a prescription may be transmitted from the physician to the pharmacist orally by telephone. The content of a prescription includes the name and address of the prescribing provider and any other legal requirement such as a registration number (e.g. DEA Number in the United States). Unique for each prescription is the name of the patient. In the United Kingdom and Ireland the patient's name and address must also be recorded. Each prescription is dated and some jurisdictions may place a time limit on the prescription.[7] In the past, prescriptions contained instructions for the pharmacist to use for compounding the pharmaceutical product but most prescriptions now specify pharmaceutical products that were manufactured and require little or no preparation by the pharmacist.[ citation needed ] Prescriptions also contain directions for the patient to follow when taking the drug. These directions are printed on the label of the pharmaceutical product.

The word "prescription", from "pre-" ("before") and "script" ("writing, written"), refers to the fact that the prescription is an order that must be written down before a drug can be dispensed. Those within the industry will often call prescriptions simply "scripts".[ citation needed ]

Contents [edit]

Every prescription contains who prescribed the prescription, who the prescription is valid for, and what is prescribed. Some jurisdictions, drug types or patient groups require additional information as explained below.

Drug equivalence and non-substitution [edit]

Many brand name drugs have cheaper generic drug substitutes that are therapeutically and biochemically equivalent. Prescriptions will also contain instructions on whether the prescriber will allow the pharmacist to substitute a generic version of the drug. This instruction is communicated in a number of ways. In some jurisdictions, the preprinted prescription contains two signature lines: one line has "dispense as written" printed underneath; the other line has "substitution permitted" underneath. Some have a preprinted box "dispense as written" for the prescriber to check off (but this is easily checked off by anyone with access to the prescription). In other jurisdictions, the protocol is for the prescriber to handwrite one of the following phrases: "dispense as written", "DAW", "brand necessary", "do not substitute", "no substitution", "medically necessary", "do not interchange".[8] In Britain's National Health Service, doctors are reminded that money spent on branded rather than generic drugs is consequently not available for more deserving cases.[9]

Prescriptions for children [edit]

In some jurisdictions, it may be a legal requirement to include the age of child on the prescription.[10] For pediatric prescriptions some[ who? ] advise the inclusion of the age of the child if the patient is less than twelve and the age and months if less than five. (In general, including the age on the prescription is helpful.) Adding the weight of the child is also helpful.

Label and instructions [edit]

Prescriptions in the USA often have a "label" box.[11] When checked, the pharmacist is instructed to label the medication and provide information about the prescription itself is given in addition to instructions on taking the medication. Otherwise, the patient is simply given the instructions. Some prescribers further inform the patient and pharmacist by providing the indication for the medication; i.e. what is being treated. This assists the pharmacist in checking for errors as many common medications can be used for multiple medical conditions. Some prescriptions will specify whether and how many "repeats" or "refills" are allowed; that is whether the patient may obtain more of the same medication without getting a new prescription from the medical practitioner. Regulations may restrict some types of drugs from being refilled.

Writing prescriptions [edit]

Legal capacity to write prescriptions [edit]

National or local (i.e. US state or Canadian provincial) legislation governs who can write a prescription. In the United States, physicians (either M.D., D.O. or D.P.M.[12]) have the broadest prescriptive authority. All 50 US states and the District of Columbia allow licensed certified Physician Assistants (PAs) prescription authority (with some states, limitations exist to controlled substances). All 50 US states and the District of Columbia, Puerto Rico and Guam allow registered certified nurse practitioners and other advanced practice registered nurses (such as certified nurse-midwives) prescription power (with some states including limitations to controlled substances).[13] [14] Many other healthcare professions also have prescriptive authority related to their area of practice. Veterinarians and dentists have prescribing power in all 50 US states and the District of Columbia. Clinical pharmacists are allowed to prescribe in some US states through the use of a drug formulary or collaboration agreements. Florida pharmacists can write prescriptions for a limited set of drugs.[15] In all US states, optometrists prescribe medications to treat certain eye diseases, and also issue spectacle and contact lens prescriptions for corrective eyewear.[16] Several US states have passed RxP legislation, allowing clinical psychologists who are registered as medical psychologists and have also undergone specialized training in script-writing, to prescribe drugs to treat emotional and mental disorders.

In August 2013, legislative changes in the UK allowed physiotherapists and podiatrists to have independent prescribing rights for licensed medicines that are used to treat conditions within their own area of expertise and competence.[17]

Standing orders [edit]

Some jurisdictions[18] [19] allow certain physicians (sometimes a government official like the state Secretary of Health,[20] sometimes physicians in local clinics or pharmacies[21]) to write "standing orders" that act like a prescription for everyone in the general public. These orders also provide a standard procedure for determining if administration is necessary and details of how it is to be performed safely. These are typically used to authorize certain people to perform preventive, low-risk, or emergency care that would be otherwise logistically cumbersome to authorize for individual patients, including vaccinations,[22] prevention of cavities, birth control, treatment of infectious diseases,[23] and reversal of drug overdoses.[20]

Legibility of handwritten prescriptions [edit]

Doctors' handwriting is a reference to the stereotypically illegible handwriting of some medical practitioners, which sometimes causes errors in dispensing. In the US, illegible handwriting has been indirectly responsible for at least 7,000 deaths annually.[24] [25] [26] [27]

There are several theories about the causes of this phenomenon. Some sources say the extreme amount of writing doctors employ during training and at work leads to bad handwriting,[28] [ better source needed ] whereas others claim that doctors neglect proper handwriting due to medical documents being intended to be read solely by medical professionals, not patients.[29] [ better source needed ] Others simply classify the handwriting of doctors as a handwriting style.[30] [31] The issue may also have a historical origin, as physicians from Europe-influenced schools have historically used Latin words and abbreviations to convey prescriptions; many of the abbreviations[ which? ] are still widely used in the modern day[ citation needed ] and could be a source of confusion.

Some jurisdictions have legislatively required prescriptions to be legible—Florida, US specifies "legibly printed or typed"[32]—and the Institute for Safe Medication Practices advocated the elimination of handwritten prescriptions altogether.[33] There have been numerous devices designed to electronically read the handwriting of doctors, including electronic character recognition,[34] keyword spotters,[35] and "postprocessing approaches,"[36] though the gradual shift to electronic health records and electronic prescriptions may alleviate the need for handwritten prescriptions altogether.[37] In Britain's NHS, remaining paper prescriptions are almost invariably computer printed and electronic (rather than paper) communication between surgery and pharmacy is increasingly the norm.[38]

Conventions for avoiding ambiguity [edit]

Over the years, prescribers have developed many conventions for prescription-writing, with the goal of avoiding ambiguities or misinterpretation.[39] [40] [41] These include:

  • Careful use of decimal points to avoid ambiguity:
    • Avoiding unnecessary decimal points and trailing zeros, e.g. 5 mL rather than 5.0 mL, 0.5 rather than .50 or 0.50, to avoid possible misinterpretation as 50.
    • Always using leading zeros on decimal numbers less than 1: e.g. 0.5 rather than .5 to avoid misinterpretation as 5.
  • Directions written out in full in English (although some common Latin abbreviations are listed below).
  • Quantities given directly or implied by the frequency and duration of the directions.
  • Where the directions are "as needed", the quantity should always be specified.
  • Where possible, usage directions should specify times (7 am, 3 pm, 11 pm) rather than simply frequency (three times a day) and especially relationship to meals for orally consumed medication.
  • The use of permanent ink.
  • Avoiding units such as "teaspoons" or "tablespoons".
  • Writing out numbers as words and numerals ("dispense #30 (thirty)") as in a bank draft or cheque.
  • The use of apothecary/avoirdupois units and symbols of measure – pints (O), ounces (℥), drams (ℨ), scruples (℈), grains (gr), and minims (♏︎) – is discouraged given the potential for confusion. For example, the abbreviation for a grain ("gr") can be confused with the gram, abbreviated g, and the symbol for minims (♏︎), which looks almost identical to an 'm', can be confused with micrograms or metres. Also, the symbols for ounce (℥) and dram (ℨ) can easily be confused with the numeral '3', and the symbol for pint (O) can be easily read as a '0'. Given the potential for errors, metric equivalents should always be used.
  • The degree symbol (°), which is commonly used as an abbreviation for hours (e.g., "q 2-4°" for every 2–4 hours), should not be used, since it can be confused with a '0' (zero). Further, the use of the degree symbol for primary, secondary, and tertiary (1°, 2°, and 3°) is discouraged, since the former could be confused with quantities (i.e. 10, 20 and 30, respectively).
  • Micrograms are abbreviated mcg rather than µg (which, if handwritten, could easily be mistaken for mg (milligrams). Even so, pharmacists must be on the alert for inadvertent over- or under-prescribing through a momentary lapse of concentration.

Abbreviations [edit]

Many abbreviations are derived from Latin phrases. Hospital pharmacies have more abbreviations, some specific to the hospital. Different jurisdictions follow different conventions on what is abbreviated or not. Prescriptions that do not follow area conventions may be flagged as possible forgeries.

Some abbreviations that are ambiguous, or that in their written form might be confused with something else, are not recommended and should be avoided. These are flagged in the table in the main article. However, all abbreviations carry an increased risk for confusion and misinterpretation and should be used cautiously.

Non-prescription drug prescriptions [edit]

Over-the-counter medication and non-controlled medical supplies such as dressings, which do not require a prescription, may be prescribed. Depending upon a jurisdiction's medical system, non-prescription drugs may be prescribed because drug benefit plans may reimburse the patient only if the over-the-counter medication is taken at the direction of a medical practitioner. In the countries of the UK, National Health Service (NHS) prescriptions are either free or have a fixed price per item;[42] a prescription may be issued so the patient does not have to purchase the item at commercial price.

Some medical software requires a prescription.[43]

Legislation may define certain equipment as "prescription devices".[44] Such prescription devices can only be used under the supervision of authorized personnel and such authorization is typically documented using a prescription. Examples of prescription devices include dental cement (for affixing braces to tooth surfaces), various prostheses, gut sutures, sickle cell tests, cervical cap and ultrasound monitor.[ citation needed ]

In some jurisdictions, hypodermic syringes are in a special class of their own, regulated as illicit drug use accessories[45] separate from regular medical legislation. Such legislation often allows syringes to be dispensed only with a prescription.[ citation needed ]

History [edit]

The idea of prescriptions dates back to the beginning of history. So long as there were medications and a writing system to capture directions for preparation and usage, there were prescriptions.[46]

Modern prescriptions are actually extemporaneous prescriptions (from the Latin ex tempore, "at/from the time"),[47] meaning that the prescription is written on the spot for a specific patient with a specific ailment. This is distinguished from a non-extemporaneous prescription that is a generic recipe for a general ailment. Modern prescriptions evolved with the separation of the role of the pharmacists from that of the physician.[48] Today the term extemporaneous prescriptions is reserved for compound prescriptions that requires the pharmacist to mix or compound the medication in the pharmacy for the specific needs of the patient.[ citation needed ]

Predating modern legal definitions of a prescription, a prescription traditionally is composed of four parts: a superscription, inscription, subscription, and signature.[49]

The superscription section contains the date of the prescription and patient information (name, address, age, etc.). The symbol "℞" separates the superscription from the inscriptions sections. In this arrangement of the prescription, the "℞" is a symbol for recipe or literally the imperative "take!" This is an exhortation to the pharmacist by the medical practitioner, "I want the patient to have the following medication"[50] – in other words, "take the following components and compound this medication for the patient."

The inscription section defines what is the medication. The inscription section is further composed of one or more of:[51]

  • a basis or chief ingredient intended to cure (curare)
  • an adjuvant to assist its action and make it cure quickly (cito)
  • a corrective to prevent or lessen any undesirable effect (tuto)
  • a vehicle or excipient to make it suitable for administration and pleasant to the patient (jucunde)

The subscription section contains dispensing directions to the pharmacist. This may be compounding instructions or quantities.

The signature section contains directions to the patient[52] and is often abbreviated "Sig."[53] or "Signa."[54] It also obviously contains the signature of the prescribing medical practitioner though the word signature has two distinct meanings here and the abbreviations are sometimes used to avoid confusion.

Thus sample prescriptions in modern textbooks are often presented as: 

          ℞:          medication          Disp.:          dispensing instructions          Sig.:          patient instructions

Use of technology [edit]

As a prescription is nothing more than information among a prescriber, pharmacist and patient, information technology can be applied to it. Existing information technology is adequate to print out prescriptions. Hospital information systems in some hospitals do away with prescriptions within the hospital. There are proposals to securely transmit the prescription from the prescriber to the pharmacist using smartcard or the internet.[55] In the UK a project called the Electronic Transfer of Prescriptions (ETP) within the National Programme for IT (NPfIT) is currently[ when? ] piloting such a scheme between prescribers and pharmacies.

Within computerized pharmacies, the information on paper prescriptions is recorded into a database. Afterwards, the paper prescription is archived for storage and legal reasons.

A pharmacy chain is often linked together through corporate headquarters with computer networking. A person who has a prescription filled at one branch can get a refill of that prescription at any other store in the chain, as well as have their information available for new prescriptions at any branch.

Some online pharmacies also offer services to customers over the internet, allowing users to specify the store that they will pick up the medicine from.

Many pharmacies now offer services to ship prescription refills right to the patient's home. They also offer mail service where you can mail in a new, original prescription and a signed document, and they will ship the filled prescription back to you.

Pharmacy information systems are a potential source of valuable information for pharmaceutical companies as it contains information about the prescriber's prescribing habits. Prescription data mining of such data is a developing, specialized field.[56]

Many prescribers lack the digitized information systems that reduce prescribing errors.[57] To reduce these errors, some investigators have developed modified prescription forms that prompt the prescriber to provide all the desired elements of a good prescription. The modified forms also contain predefined choices such as common quantities, units and frequencies that the prescriber may circle rather than write out. Such forms are thought to reduce errors, especially omission and handwriting errors and are actively under evaluation.[58]

See also [edit]

  • Eyeglass prescription
  • Inverse benefit law
  • Off-label use
  • Medicines reconciliation
  • Medical device (such as hearing aids, for example) may be specified by a type of prescription
  • Prescription analytics
  • Prescription charges (England)
  • Prescription drugs
  • Private prescription
  • Referral
  • Special prescription form
  • List of abbreviations used in medical prescriptions

References [edit]

Explanatory footnotes [edit]

  1. ^ Second person singular imperative form of recipere meaning "receive" or "take".[2]
  2. ^ Compare with Pound sign#Origin. Transliteration as Rx is ubiquitous but erroneous, it is not an x.
  3. ^ Folk theories about the origin of the symbol '℞' note its similarity to the Eye of Horus,[3] [4] or to the ancient symbol for Zeus or Jupiter, (♃), gods whose protection may have been sought in medical contexts.[5] No objective evidence has been produced for these theories.

Citations [edit]

  1. ^ a b "Definition of Rx". Merriam Webster. 19 December 2019. a 16th-century symbol, the letter R with a line through its slanted leg-the line signaling that the "R" is functioning as an abbreviation.
  2. ^ "Latin verbs: recipere". cactus2000.de . Retrieved 2019-12-19 .
  3. ^ Eye of Horus, Eye of Ra (Udjat, Wedjat) Archived October 12, 2007, at the Wayback Machine
  4. ^ "First recorded incidence of the pharmaceutical sign 'Rx'". Egyptphoto.ncf.ca. Retrieved 2012-02-13 .
  5. ^ Amy Beth Dukoff. "Did You Know Where Rx Came From?". Endomail.com. Archived from the original on 2013-10-03. Retrieved 2014-01-02 .
  6. ^ Oxford English Dictionary, articles on the letter "R" (sense 14b) and the word "recipe."
  7. ^ "Guide to Good Prescribing - A Practical Manual: Part 3: Treating your patients: Chapter 9. STEP 4: Write a prescription". apps.who.int . Retrieved 26 March 2018.
  8. ^ "State Laws or Statutes Governing Generic Substitution by Pharmacists". Epilepsy.com/Professionals. 2007-04-25. Retrieved 2014-01-02 .
  9. ^ Medicines Optimisation Team (April 2019). Generic Prescribing Guidelines (PDF) (Report). Greater Manchester Health and Care Commissioning. Retrieved 26 May 2020.
  10. ^ "Prescribing for children". BNF. Archived from the original on July 1, 2003.
  11. ^ Davis, T (August 30, 2005). "Prescription Writing and the PDR". Comprehensive Care Clinic. Retrieved 2014-01-02 .
  12. ^ "Who Can Prescribe and Administer Prescriptions in Washington State". Washington State Department of Health.
  13. ^ "US Nurse Practitioner Prescribing Law: A State-by-State Summary". Medscape. December 14, 2009.
  14. ^ Batey MV, Holland JM (March 1985). "Prescribing practices among nurse practitioners in adult and family health". American Journal of Public Health. 75 (3): 258–62. doi:10.2105/AJPH.75.3.258. PMC1646172. PMID 3976950.
  15. ^ "Florida's Pharmacists Can Write Prescriptions". The New York Times. May 2, 1986. Retrieved 2014-01-02 .
  16. ^ "Features, November 2000". 23 December 2001. Archived from the original on 23 December 2001. Retrieved 26 March 2018.
  17. ^ "Physiotherapists and podiatrists join ranks of independent prescribers". The Pharmaceutical Journal. 291: 174. 20 August 2013. doi:10.1211/PJ.2013.11124528.
  18. ^ What are Standing Orders and Are They Legal?
  19. ^ Guiding Principle 11 - Standing orders
  20. ^ a b Naloxone Standing Order DOH-002-2018
  21. ^ Massachusetts Department of Public Health Emergency Contraception / Model Standing Order
  22. ^ Using Standing Orders for Administering Vaccines: What You Should Know
  23. ^ Oregon Center for Nursing. "Standing Orders and Protocols:Feedback Analysis and Recommendations" (PDF).
  24. ^ "APPEAL NO. 991681 Texas v. Dr. K" (PDF) . Retrieved 2020-04-16 .
  25. ^ "Decoding physician's handwriting can mean life or death". ottawacitizen.com. 2012-11-23.
  26. ^ Caplan, Jeremy (2007-01-15). "Cause of Death: Sloppy Doctors". Time. ISSN 0040-781X. Retrieved 2019-05-06 .
  27. ^ Charatan, Fred (1999-12-11). "Medical errors kill almost 100000 Americans a year". BMJ : British Medical Journal. 319 (7224): 1519. doi:10.1136/bmj.319.7224.1519. ISSN 0959-8138. PMC1117251. PMID 10591699.
  28. ^ Pareek, Shabdita (2016-11-26). "Ever Wondered Why All Doctors Have A Terrible Handwriting? This Doctor Has A Valid Reason". www.scoopwhoop.com . Retrieved 2020-04-16 .
  29. ^ Borcherds, Marvin (2014-11-28). "Why is doctors' handwriting so bad?". Health24 . Retrieved 2020-04-15 .
  30. ^ "Legibility of doctors' handwriting is as good (or bad) as everyone else's". CiteSeerX10.1.1.657.9146.
  31. ^ Harralson, Heidi H. (2014-09-25). Developments in Handwriting and Signature Identification in the Digital Age. Routledge. ISBN978-1-317-52288-1.
  32. ^ "456.42 Written prescriptions for medicinal drugs". Florida Statutes.
  33. ^ "Eliminate Handwritten Prescriptions Within 3 Years". Institute for Safe Medication Practices. 2000. Archived from the original on 4 October 2017.
  34. ^ Dhande, Pritam S.; Kharat, Reena (August 2017). "Character Recognition for Cursive English Handwriting to Recognize Medicine Name from Doctor's Prescription". 2017 International Conference on Computing, Communication, Control and Automation (ICCUBEA): 1–5. doi:10.1109/ICCUBEA.2017.8463842. ISBN978-1-5386-4008-1. S2CID 52287243.
  35. ^ Roy, Partha Pratim; Bhunia, Ayan Kumar; Das, Ayan; Dhar, Prithviraj; Pal, Umapada (2017-06-15). "Keyword spotting in doctor's handwriting on medical prescriptions". Expert Systems with Applications. 76: 113–128. doi:10.1016/j.eswa.2017.01.027. ISSN 0957-4174.
  36. ^ Chen, Qi; Gong, Tianxia; Li, Linlin; Tan, Chew Lim; Pang, Boon Chuan (November 2010). "A Medical Knowledge Based Postprocessing Approach for Doctor's Handwriting Recognition". 2010 12th International Conference on Frontiers in Handwriting Recognition: 45–50. doi:10.1109/ICFHR.2010.121. ISBN978-1-4244-8353-2. S2CID 18433195.
  37. ^ Robaina Bordón, J. M.; Morales Castellano, E.; López Rodríguez, J. F.; Sosa Henríquez, M. (December 2014). "La letra de médico". Revista de Osteoporosis y Metabolismo Mineral. 6 (4): 122–126. doi:10.4321/S1889-836X2014000400008. ISSN 1889-836X.
  38. ^ "Electronic Prescription Service". NHS. 2 April 2020. Retrieved 26 May 2020.
  39. ^ "Prescription writing". BNF. Archived from the original on August 16, 2003.
  40. ^ "Good prescription practice". 9 July 2000. Archived from the original on 9 July 2000. Retrieved 26 March 2018.
  41. ^ Teichman PG, Caffee AE (2002). "Prescription writing to maximize patient safety" (PDF). Family Practice Management. 9 (7): 27–30. PMID 12221761. Retrieved 2010-01-22 .
  42. ^ "NHS Prescriptions Charges - A Guide 2021-2022". Focus on Disability. April 2021. Retrieved 16 April 2021. Prescription charges for English residents will be £9.35 per item ... Scotland, Wales, and Northern Ireland have abolished prescription charges.
  43. ^ Ferdman, Roberto A. "The world's first prescription-only smartphone app". Quartz (publication). Atlantic Media. Retrieved 6 January 2014.
  44. ^ "CFR – Code of Federal Regulations Title 21". U.S. Food and Drug Administration (FDA). 2009-04-01. Retrieved 2014-01-02 .
  45. ^ "(720 ILCS 635/) Hypodermic Syringes and Needles Act". Illinois Compiled Statutes.
  46. ^ "Pharmacy in Ancient Babylonia". History of Pharmacy. Washington State University College of Pharmacy. Archived from the original on August 18, 2009. Retrieved 2010-01-22 .
  47. ^ "Extemporaneous definition". M-w.com. 2007-04-25. Retrieved 2014-01-02 .
  48. ^ Anderson, Stuart (26 March 2018). Making Medicines: A Brief History of Pharmacy and Pharmaceuticals. Pharmaceutical Press. ISBN9780853695974 . Retrieved 26 March 2018 – via Google Books.
  49. ^ Potter, Samuel O.L. (1902). "Prescription Writing". A Compend of Materia Medica, Therapeutics, and Prescription Writing (sixth ed.). P. BLAKISTON'S SON.
  50. ^ (PDF). 2 June 2004 https://web.archive.org/web/20040602083443/http://www.vnh.org/HospitalCorpsman14295/14295_ch6.pdf. Archived from the original (PDF) on 2 June 2004. Retrieved 26 March 2018.
  51. ^ "Therapeutics". LoveToKnow Free Online Encyclopedia. 2006-02-15. Retrieved 2010-01-22 .
  52. ^ "Signature definition". M-w.com. 2007-04-25. Retrieved 2014-01-02 .
  53. ^ [1] Archived August 26, 2003, at the Wayback Machine
  54. ^ Ansel, H. Pharmaceutical Calculations. 13th edition, Philadelphia. Lippincott, Williams, and Wilkins. 2010. p59-60.
  55. ^ "IEEE Computer Society Conference Publishing Services".
  56. ^ Zoutman, D. E.; Ford, B. D.; Bassili, A. R. (2000). "A call for the regulation of prescription data mining". Canadian Medical Association Journal. 163 (9): 1146–8. PMC80247. PMID 11079059.
  57. ^ Zwarenstein, Merrick F.; Dainty, Katie N.; Quan, Sherman; Kiss, Alex; Adhikari, Neill KJ (2007). "A cluster randomized trial evaluating electronic prescribing in an ambulatory care setting". Trials. 8: 28. doi:10.1186/1745-6215-8-28. PMC2092426. PMID 17915028.
  58. ^ Kennedy, Amanda G.; Littenberg, Benjamin (2004). "A Modified Outpatient Prescription Form to Reduce Prescription Errors". The Joint Commission Journal on Quality and Safety. 30 (9): 480–7. doi:10.1016/S1549-3741(04)30056-0. PMID 15469125.

Further reading [edit]

  • Bennett, Reginald Robert (1906), Medical and Pharmaceutical Latin for Students of Pharmacy and Medicine, J. & A. Churchill. Public domain; free ebook at Google Books. Subtitle: A Guide to the Grammatical Construction and Translation of Physicians' Prescriptions, Including Extensive Vocabularies and an Appendix Upon Foreign Prescriptions. CS1 maint: postscript (link)

Why Would A Doctor Prescribe Vitamin D

Source: https://en.wikipedia.org/wiki/Medical_prescription

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