8-Chlorotheophylline
Limited data
Limited data
Sparse data. Doses and effects may be unreliable or untested.
- 1 source
- no dose data
- 1 source
- no dose data
Summary
8-Chlorotheophylline (1,3-dimethyl-8-chloroxanthine or 8-CTP) is a stimulant drug of the xanthine class that is closely related to caffeine in both its chemical structure and effects. It is mainly used as a wakefulness-promoting agent found within dimenhydrinate, where it counteracts the drowsiness effects present with diphenhydramine. 8-Chlorotheophylline can cause heart problems in people who take large doses of dimenhydrinate as both of the active ingredients in the drug, Diphenhydramine, and 8-Chlorotheophylline together can cause severe tachycardia.
Effect Profile
Scores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Strong focus and anxiety/jitters with moderate stimulation, mild euphoria
Tolerance
Tolerance Decay
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
Effect glossary — · full glossary
Helpful Links
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