antihistamine
Allergy-Blocking Drug
Plain-language definition
Medications blocking histamine to relieve allergy symptoms like itching, redness, and swelling. Available as eye drops (olopatadine, ketotifen) or oral tablets.
Where this term comes up
“Antihistamines are the most common OTC culprit - they block acetylcholine receptors that stimulate tear production”
Guide · Medications That Cause Dry Eye
“Premedication with acetaminophen and an antihistamine is common”
Treatment · IVIG (Intravenous Immunoglobulin)
“Antihistamines”
Condition · Meibomian Gland Dysfunction (MGD)
- Category
- Medication
- Also written as
- antihistamines
Medication terms describe drugs or drug classes that may be used in eye care, neurology, inflammation, infection, or pain treatment.
Related glossary terms
- cornea
Clear Front Window
- antidepressant
Mood-Regulating Drug
- autoimmune
Self-Attacking Immune Response
- punctum
Tear Drain Opening
- evaporative
Tear Evaporation-Related
- lacrimal
Tear-Related
A note on medical context
A glossary definition can explain a word, but it cannot tell you whether a symptom or test result is serious. If this term came from an article, use the full article and your clinician's guidance for context.