8-Chlorotheophylline

Chemical compound
  • none
Legal statusLegal status
  • In general: Over-the-counter (OTC)
Identifiers
  • 8-chloro-1,3-dimethyl-7H-purine-2,6-dione
CAS Number
  • 85-18-7 ☒N
PubChem CID
  • 10661
ChemSpider
  • 10211 checkY
UNII
  • GE2UA340FM
ChEBI
  • CHEBI:59771 checkY
ChEMBL
  • ChEMBL88611 checkY
CompTox Dashboard (EPA)
  • DTXSID5043764 Edit this at Wikidata
ECHA InfoCard100.001.446 Edit this at WikidataChemical and physical dataFormulaC7H7ClN4O2Molar mass214.61 g·mol−13D model (JSmol)
  • Interactive image
  • Cn2c(=O)c1[nH]c(Cl)nc1n(C)c2=O
InChI
  • InChI=1S/C7H7ClN4O2/c1-11-4-3(9-6(8)10-4)5(13)12(2)7(11)14/h1-2H3,(H,9,10) checkY
  • Key:RYIGNEOBDRVTHA-UHFFFAOYSA-N checkY
 ☒NcheckY (what is this?)  (verify)

8-Chlorotheophylline, also known as 1,3-dimethyl-8-chloroxanthine, is a stimulant drug of the xanthine chemical class, with physiological effects similar to caffeine.[1] Its main use is in combination (salt) with diphenhydramine in the antiemetic dimenhydrinate (Dramamine). Diphenhydramine reduces nausea but causes drowsiness, and the stimulant properties of 8-Chlorotheophylline help reduce that side effect.[2]

Despite being classified as a xanthine stimulant, 8-chlorotheophylline can generally not produce any locomotor activity above control in mice and does not appear to cross the blood-brain barrier well.[citation needed]

The 8-chloro modification is not selected for pharmacological properties; instead, it was to raise the acidity of the xanthine amine group enough to form a co-salt with diphenhydramine.[2]

The drug is also sold in combination with promethazine, again as a salt.[3]

References

  1. ^ Snyder SH, Katims JJ, Annau Z, Bruns RF, Daly JW (May 1981). "Adenosine receptors and behavioral actions of methylxanthines". Proceedings of the National Academy of Sciences of the United States of America. 78 (5): 3260–4. Bibcode:1981PNAS...78.3260S. doi:10.1073/pnas.78.5.3260. PMC 319541. PMID 6265942.
  2. ^ a b Cusic JW (3 June 1949). "Note on the Chemistry of Dramamine". Science. 109 (2840): 574. doi:10.1126/science.109.2840.574.a. PMID 17743285. S2CID 239515706.
  3. ^ https://www.ebi.ac.uk/chebi/searchId.do?chebiId=8461 "The anti-emetic action of both the hydrochloride and the teoclate (8-chlorotheophylline) salts is used for the prevention of nausea in cases of motion sickness and post-operative vomiting."
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AdamantanesAdenosine antagonistsAlkylaminesAmpakinesArylcyclohexylaminesBenzazepinesCathinonesCholinergicsConvulsantsEugeroicsOxazolinesPhenethylamines
PhenylmorpholinesPiperazinesPiperidinesPyrrolidinesRacetamsTropanesTryptaminesOthers
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Receptor
(ligands)
P0 (adenine)
P1
(adenosine)
P2
(nucleotide)
P2X
(ATPTooltip Adenosine triphosphate)
P2Y
Transporter
(blockers)
CNTsTooltip Concentrative nucleoside transporters
ENTsTooltip Equilibrative nucleoside transporters
PMATTooltip Plasma membrane monoamine transporter
Enzyme
(inhibitors)
XOTooltip Xanthine oxidase
Others
Others
See also: Receptor/signaling modulators
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