promethazine
Definition
Noun: 1. A sedating antihistamine drug: A medication belonging to the phenothiazine class, primarily used to treat symptoms of allergies, such as itching, runny nose, and sneezing. It also has strong antiemetic (anti-nausea/vomiting) and sedative properties. * Core Meaning: A pharmaceutical compound with multiple therapeutic effects, most notably as an antihistamine and antiemetic.
Examples of Usage
- Noun:
- The doctor prescribed promethazine to relieve her severe allergic reaction.
- Promethazine is often effective in preventing nausea associated with motion sickness.
- Due to its sedating side effect, promethazine can help with short-term sleep problems.
Advanced Usage
- Therapeutic Context: In medical contexts, "promethazine" is specified by its indication.
- Promethazine is administered preoperatively for its sedative and antiemetic effects.
- Pharmacological Classification: It is often described by its drug class.
- As a first-generation antihistamine, promethazine readily crosses the blood-brain barrier.
Variants and Related Words
- Phenergan (noun): A common trade name for promethazine.
- Phenergan is a brand-name version of the drug promethazine.
- Antihistamine (noun): The broader class of drugs to which promethazine belongs.
- Antiemetic (noun): A substance that prevents nausea and vomiting; a key property of promethazine.
Synonyms
- Antihistamine: (general class synonym) A substance that blocks histamine receptors.
- Antiemetic: (functional synonym) A drug that prevents or treats nausea.
Notes on Usage
- Medical Terminology: "Promethazine" is a technical, scientific term used almost exclusively in medical, pharmaceutical, or clinical contexts. It is not used in everyday conversation outside of discussing specific medical treatment.
- Precise Reference: The word refers specifically to the chemical compound itself. Its effects (sleepiness, relief from itching) are described separately.
Noun
-
antihistamine (trade name Phenergan) used to treat allergies; also an antiemetic used to treat motion sickness
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