Tail-flick latency (s)
Control, saline orally
4.4 (3.5 ÷ 4.7)
Hemantane, 20 mg/kg orally
4.9 (4.5 ÷ 5.7)*
Amantadine, 20 mg/kg orally
4.5 (4.3 ÷ 4.9)