Parogrelil is a phosphodiesterase (PDE3 PDE5A) inhibitor potentially for the treatment of intermittent. Parogrelil suppress the asthmatic response in guineapigs, with both bronchodilating and anti-inflammatory effects. Parogrelil improves reduced walking
Lincydomine is a smooth muscle relaxant, beneficial to the treatment of unstable angina pectoris, but also can open the respiratory tract of humans and guineapigs.