After CABG and pleural effusion for which Thorocoscopy was done showing no infection and pleurodesis I am having severe constipation since I had taken many antibiotics, pain relievers and blood thinners. I have been prescribed Lubowel 24 mg tablets and taking them since 24 days. I am taking fibre rich foods. Still constipation and gas persist. Please advise what should be done to get rid of constipation and gas.