Figure 1From: Central antitussive effect of codeine in the anesthetized rabbit Increasing doses of codeine injected icv (0.4 mg/kg) reduced the tracheobronchial coughing. BP - blood pressure; EP - esophageal pressure; DIA - integrated EMG of the diaphragm; ABD - integrated EMG of abdominal muscles; Stim - tracheobronchial stimulation.Back to article page