许多医生一经发现了替代依普利酮的药品，而且比依普利酮更早出产，应用面更广。它就是安体舒通。这种药每天只需花费不到20美分。同依普利酮每月大约133美元的用费相比，它实惠很多。
Many doctors saw an alternative: wider use of an older relative of Inspra, spironolactone, a generic medicine that costs less than 20 cents a day, versus about $133 a month for Inspra.
目的比较舒马普坦与散利痛治疗偏头痛急性发作的疗效。
Objective To compare the efficacy of sumatriptan and compound paracetamol in the treatment of a single migraine attack.
DU 122290是由舒多普利改进得到的，增强了活性和选择性。请解释可能的理由。
DU 122290 was developed from sultopride and shows improved activity and selectivity. Suggest possible reasons for this.
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