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| ! Receptor !! Binding Affinity !! Effects !! Mechanism !! Agonists !! Antagonists | | ! Receptor !! Binding Affinity !! Effects !! Mechanism !! Agonists !! Antagonists |
| |- | | |- |
− | | Alpha-1 || Norepi > Epi >> Iso || Smooth muscle contraction || Gq, PLC -> IP3/DAG | + | | α1 || Norepi > Epi >> Iso || Smooth muscle contraction || Gq, PLC -> IP3/DAG |
| | | | | |
| *Norepi | | *Norepi |
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| *Trazodone | | *Trazodone |
| |- | | |- |
− | | Alpha-2 || Epi = Norepi >> Iso || Mixed effects || Gi, presynaptic, cAMP down | + | | α2 || Epi = Norepi >> Iso || Mixed effects || Gi, presynaptic, cAMP down |
| | | | | |
| *Dexmedetomidine | | *Dexmedetomidine |
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| *Trazodone | | *Trazodone |
| |- | | |- |
− | | Beta-1 || Iso > Norepi > Epi || Example || Gs, cAMP up | + | | β1 || Iso > Norepi > Epi || Chronotropy, Inotropy, Amylase secretion || Gs, cAMP up |
| | | | | |
| *Dobutamine | | *Dobutamine |
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| *Esmolol | | *Esmolol |
| |- | | |- |
− | | Beta-2 || Iso > Epi > Norepi || Example || Gs, cAMP up | + | | β2 || Iso > Epi > Norepi || Smooth muscle relaxation || Gs, cAMP up |
| | | | | |
| *Albuterol | | *Albuterol |
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| *Pindolol | | *Pindolol |
| *Timolol | | *Timolol |
| + | *Carved'''ilol''' (anti-α1) |
| + | *Labet'''alol''' (anti-α1) |
| |- | | |- |
− | | Beta-3 || Iso > Epi = Norepi || Example || Gs, cAMP up | + | | β3 || Iso > Epi = Norepi || Lipolysis, bladder detrusor relaxation || Gs, cAMP up |
| | | | | |
| *Mirabegron | | *Mirabegron |
| | | | | |
− | Example
| + | *SR 59230A |
| |} | | |} |