Summary of the effects of SSRIs on the smooth muscle cells and ion channels
| Drug | Intestinal smooth muscles | Vascular smooth muscles | Gastric smooth muscle cells | Isthmus of human Fallopian tube | Ampulla of human Fallopian tube | hERG channels | Kv channels of coronary arteries of rabbits |
|---|---|---|---|---|---|---|---|
| Fluoxetine | Relaxation | Dilation of isolated skeletal muscle arterioles and small rat cerebral arteries | Contraction | Does not show a statistically significant effect | Does not show a statistically significant effect | Unknown | Unknown |
| Paroxetine |
| Does not show a statistically significant effect | Increasing gastric accommodation | Contraction | Does not show a statistically significant effect | Unknown | Unknown |
| Citalopram | Relaxation | Dilatation | Contraction | Does not show a statistically significant effect | Does not show a statistically significant effect | Unknown | Unknown |
| Escitalopram | Unknown | Vasoconstriction of vascular smooth muscle cells of rabbit coronary arteries | Unknown | Does not show a statistically significant effect | Contraction | Inhibition | Inhibition |
| Sertraline | Unknown | Vasoconstriction of vascular smooth muscle cells of rabbit coronary arteries | Does not show a statistically significant effect | Does not show a statistically significant effect | Does not show a statistically significant effect | Unknown | Inhibition |
| Fluxoxamine | Unknown | Vasoconstriction of vascular smooth muscle cells of rabbit coronary arteries | Unknown | Unknown | Unknown | Inhibition | Inhibition |
| Dapoxetine | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown | Inhibition |