KnowraMethylxanthineLinked fromLinked fromThe 6 pages that link to Methylxanthine, each with the reason it gives.All 6Broader topic 1Narrower topic 4Compared with 1Adenosine receptor antagonistNarrower topic: Several familiar adenosine antagonists belong to this chemical family.TheobromineNarrower topic: Theobromine belongs to this chemical family, which also includes caffeine.TheophyllineNarrower topic: Theophylline's chemistry and several biological effects are shared with this drug and natural-product family.Kola nutNarrower topic: Kola nut’s stimulant alkaloids belong to this chemical family.