8,10-Dideazaminopterins

8-(1H-Tetrazol-5-yl)-11H-pyrido[2,1-b]quinazolin-11-ones and met

8-Adamantylaminomethyl ergolene derivatives

8-Alkyl and alkenyl-10-hydroxy-5H[1]benzopyranopyridine derivati

8-Alkyl-5-oxo-5,8-dihydro-pyrido(2,3-d)pyrimidine-6-carboxylic a

8-Alkylpyrido[3,4-d]pyridazines

8-Amino-2-methyl-4-phenyl-1,2,3,4-tetrahydroisoquinoline-8-N-glu

8-Amino-theophylline derivatives and therapeutic applications th

8-Azapurin-6-one derivatives

8-Azapurine derivatives

8-N-methylpiperazinyl-N'-carbonyldibenzobicyclooctadiene and sal

8-Oxa-3-azabicyclo(3.2.1)octane analgesic compositions and metho

8-Phenyl-purines and pharmaceutical compositions containing same

8-Quinolinyl carbamates and their use as urinary tract antimicro

8-Substituted-2-(4-pyridinyl)-9H-purin-6-amines and their cardio

8-[2-Imidazolylmethyloxy(thio, or amino)]-imidazo[1,2-a]pyrazine

8.alpha.-Substituted ergoline-I derivatives

8H-Pyrazolo[1,5-a]pyrazolo[4',3':5,6]pyrido[3,4-e]pyrimidine

8H-Pyrazolo[1,5-a]pyrazolo[4',3':5,6]pyrido[3,4-e]pyrimidine

8H-Pyrazolo[4',3':5,6]pyrido[3,4-e] [1,2,4]triazolo-[1,5-a]pyrim