Similar names: 1,5-Dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one; 1,5-Dihydro-1H-pyrazolo[3,4-d]pyrimidin-4-one; 1H-Pyrazolo[3,4-d]pyrimidin-4-ol; 4-Hydroxy-1H-pyrazolo[3,4-d]pyrimidine; 4-Hydroxypyrazolo[3,4-d]pyrimidine; 4-Oxopyrazolo[3,4-d]pyrimidine; Adenock; Allopur; Allopurinol; Allopurinol(I); Allozym; Allurtal; Aloprim; Alopurinol; Aloral; Alositol; Anoprolin; Anzief; Apulonga; Apurin; Apurol; Atisuril; BW 15658; BW 56-158; Bleminol; Bloxanth; Caplenal; Cellidrin; Cosuric; Dabroson; Embarin; Epidropal; Foligan; Geapur; Gichtex; Gotax; HPP; Hamarin; Hexanurat; Ketanrift; Ketobun A; Ledopur; Lopurin; Lysuron; Milurit; Miniplanor; Monarch; NSC 101655; NSC 1390; Nektrohan; Remid; Riball; Sigapurol; Sllo-puren; Suspendol; Takanarumin; Urbol; Uricemil; Uriprim; Uripurinol; Urobenyl; Urosin; Urtias; Xanturat; Zyloprim; Zyloric