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Latin

Prescription abbreviations. Frequency segments

8 topics with a brief review: definitions, key facts, and classroom questions.

This section is the foundation of a physician's pharmaceutical literacy. Here we break down how to correctly issue prescriptions so that the pharmacist at the pharmacy understands you implicitly and the patient receives precisely the medication you intended.

The materials in this section compile universally accepted prescription abbreviations and frequency stems that encode information about the chemical composition and pharmacological action of drugs. We will analyze in detail the names of medicinal plant raw materials, the structure of drug formulations, and algorithms for translating prescriptions into Latin. Additionally, the section includes medical Latin aphorisms that shape medical ethics and professional erudition.

Please note: during classes and exams, instructors evaluate most strictly the practical skill of independently translating prescriptions without grammatical errors and the ability to "read" frequency stems in International Nonproprietary Names (INNs). Without a confident grasp of this basics, studying pharmacology in senior years will be extremely difficult.

Section Topics

Frequently asked questions for this section

Is it possible to abbreviate the name of the active substance in a prescription?

No, this is strictly prohibited. Any names of chemical compounds, medicines, and plants must be written out in full to eliminate the risk of dispensing the wrong drug.

Why do we write s instead of z in the word Anaesthesinum?

In this preparation, the phonetically sounding syllable [-zin-] has a different etymological origin not related to the word "nitrogen". According to the rules, such exception words are always spelled with s.

Why are two words used in the name of the raw material "peppermint"?

The specific epithet "peppermint" (piperitae) is an adjective and grammatically agrees with the noun "mint" (Menthae) in gender, number, and case.

How to correctly write instructions for preparing an herbal mixture?

In the prescription, it is necessary to write: Misce, fiant species (Mix, let a species be made). After this, Da. Signa is indicated.

How to properly prescribe commercial drug names?

The trade name is always written in the nominative case and must be enclosed in quotation marks. The pharmaceutical form itself is placed in the accusative case, for example: "Theodibaverin" tablets — Tabulettas "Theodibaverinum".

What does the expression "Condicio sine qua non" mean precisely?

Literal translation — "Condition without which not". In practice, it is used to denote a strictly mandatory, vitally necessary requirement for any process to take place.

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