Chlorpheniramine is a first-generation antihistamine used for allergy relief. At therapeutic doses it causes drowsiness and anticholinergic effects including dry mouth, blurred vision, and urinary retention. High doses can cause delirium with realistic hallucinations. Caution advised in elderly, those with glaucoma, prostate issues, or cardiovascular disease. Avoid during pregnancy without medical advice.
Clóirféinirimín molecular structure diagram from the DrugsPRO substance library.
Also known as: Cpm, Piriton, Demazin, Teldrin, Allerest, Chlorphenamine, Chlorpheniramine polistirex, Chlorphenaminum, Clorfeniramina, Chlor-Trimeton, Aller-Chlor
Classification
Chemical: Medicine
Psychoactive: Deliriant
Psychoactive: Depressant
Tag: Alkylamine derivative
Tag: Antihistamine
Tag: Research-Chemical
Tag: Sedative
Tag: Tentative
Effects
Sedation
Muscle Relaxation
Nausea Suppression
Dry Mouth
Difficulty Urinating
Reduced Sweating And Overheating Risk
Drowsiness
Anxiety Suppression
Delirium
Depth Perception Distortions
Cognitive Impairment
Decreased Focus
Blurred Vision
External Hallucination
Dulled Perception
Cognitive Dysphoria
Perception Of Increased Weight
Dehydration
Routes of Administration
Oral
Dosage
Threshold: 1 mg
Light: 50-60 mg
Common: 60-70 mg
Strong: 70-80 mg
Heavy: 80+ mg
Duration
Onset: 0.5-2 h
Comeup: 0.5-1 h
Peak: 2-3 h
Offset: 1-2 h
After Effects: 6-24 h
Total Duration: 4-6 h
Harm Reduction
Check interactions before mixing substances, pay attention to dose spacing and hydration, and treat all dosage guidance as approximate rather than guaranteed safe.
Sources
Substance data is aggregated from the following public harm-reduction and reference sources.
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Chlorpheniramine - Treoir substaint DrugsPRO
Chlorpheniramine: Chlorpheniramine is a first-generation antihistamine used for allergy relief. At therapeutic doses it causes drowsiness and anticholinergic effects including dry mouth, blurred vision, and urinary retention. High doses can cause delirium with realistic hallucinations. Caution advis