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)