Synonyms:
5-[2-ethoxy-5-[2-(4-ethyl-1-piperazinyl-d8)acetyl]phenyl]-1,6-dihydro-1-methyl
-3-propyl- ; 5-[2-ethoxy-5-[2-(4-ethyl-1-piperazinyl-d8)acetyl]phenyl]-1,6-dihydro-1-methyl -3-propyl-7h-pyrazolo[4,3-d]pyrimidin-7-one ; acetildenafil-d8 ; hongdenafil-d8