... drugs − acetylsalicylic acid: 119, diclofenac: 7, flupirtine: 10 to nearly 30 times more active than paracetamol [2], ibuprofen: 19, indometacin: 3, paracetamol: 159; h) NA: non active; i) ND: not determined. Table 4 see p. 816. Arzneim.-Forsch./Drug Res. 51 (II), 814−824 (2001) ...