Klorfeniramin

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.

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.

Links

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