− | The blocking ratio indicates the relative effect of the agent on reuptake of 5-HT vs. noradrenaline. Fluoxetine is 3 times more selective for 5-HT than clomipramine. Clomipramine is the only TCA that whose ratio favours 5-HT reuptake inhibition, and hence its title of non-selective serotonin reuptake inhibitor (SRI). | + | The blocking ratio indicates the relative effect of the agent on reuptake of 5-HT vs. noradrenaline. Fluoxetine is 3 times more selective for 5-HT than clomipramine. Clomipramine was the first TCA whose ratio favours 5-HT reuptake inhibition, and hence its title of non-selective serotonin reuptake inhibitor (SRI). |