[Erowid Note: The use of halothane for anaesthesia in hospital settings has largely been replaced with other inhalant anesthetics.] My group recently aquired a small flask of halothane, one of the preferred agents for inhalation-anaesthesia in hospitals.
Halothane
Limited data
Limited data
Sparse data. Doses and effects may be unreliable or untested.
- 1 source
- no dose data
- PubChem toxicity data
- classified Tentative
Limited data
Sparse data. Doses and effects may be unreliable or untested.
- 1 source
- no dose data
- PubChem toxicity data
- classified Tentative
Summary
A powerful inhalant anaesthetic generally used in a medical setting to induce unconsciousness, as a supplement with ketamine or fentanyl.
Tolerance
Build-up
develops over 1–4 weeks of regular use
Reset
days to weeks depending on duration of use
Tolerance Decay
Full tolerance
3d
Half tolerance
8d
Baseline
~14d
Acute tolerance: develops within a single session — the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Effects
Positive
- Stimulation
Negative
- Motor impairment
- Increased heart rate
- Insomnia
- Pupil dilation
- Nausea
- Vasoconstriction
- Restlessness
- Sedation
- Decreased appetite
Positive
- Reduced anxiety
- Euphoria
- Cognitive euphoria
- Wakefulness
- Empathy
Negative
- Anxiety
- Confusion
- Compulsive redosing
- Time distortion
- Talkativeness
Positive
- Increased music appreciation
- Color enhancement
- Tactile enhancement
- Brightened colour
Negative
- Light sensitivity
- Disinhibition
- Appetite suppression
- Dehydration
- Dulled perception
- Drifting
Community Trip Reports
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Halothane's nerd page
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