8-bromotheophylline 8-bromotheophylline 8-bromotheophylline is a xanthine diuretic drug. it is the main active ingredient in pamabrom where it is sold as an over-the-counter medication in combination with paracetamol, among other analgesics, to treat dysmenorrhea. it is also an adenosine receptor a1 antagonist. 8-bromotheophyllineclinical dataother namesbromotheophyllineidentifiers iupac name 8-bromo-1,3-dimethyl-7h-purine-2,6-dione cas number10381-75-6pubchem cid11808drugbankdb14018chemspider11315uniifzg87k1mq6chemblchembl316160comptox dashboard (epa)dtxsid7044768echa infocard100.030.757 chemical and physical dataformulac7h7brn4o2molar mass259.063 g·mol−13d model (jsmol)interactive image smiles cn1c2=c(c(=o)n(c1=o)c)nc(=n2)br inchi inchi=1s/c7h7brn4o2/c1-11-4-3(9-6(8)10-4)5(13)12(2)7(11)14/h1-2h3,(h,9,10)key:sktfqhrvffohtq-uhfffaoysa-n