Antagonists | LI/LII | LV | LX | ||
---|---|---|---|---|---|
 | ipsi | contra | ipsi | contra |  |
Atropine (muscarinic) | - | - | - | ↑* | - |
Phenoxybenzamine (α-adrenergic) | - | - | - | - | - |
Methysergide (5-HT1/2B/2C) | ↓* | - | ↓# | ↓# | ↓# |
LY 278,584 (5-HT3) | - | - | - | ↓* | ↓* |
Ketanserin (5-HT2A) | ↓* | - | - | ↓* | ↓* |
Methiothepin (5-HT1/2A/2C/5/6/7) | ↓* | - | ↓* | ↓* | ↓* |