Figure 1: Effects of aqueous extract (AE) and arrope (Ar) of G. decorticans on the ammonia liquor induced cough. (A) Increased latency period (%) and (B) Inhibition of frequency of cough (%) in rats. Rats were treated with AE and Ar (250, 500 and 1000 mg/kg). Codeine phosphate (3 mg/kg) was taken as a positive control. Values were expressed as mean ± SE (n = 6), (*) p < 0.05 compared with the control group.