as·pi·rin 
/ˈæspərən/ noun
plural aspirin or as·pi·rins /ˈæspərən/ noun : a medicine that reduces pain and fever [noncount] ▪ Aspirin is effective in controlling headaches. ▪ an aspirin pill [count] ▪ I had a headache so I took a couple of aspirins/aspirin. [=a couple of aspirin pills]
