Stopping the clonazepam and propranolol combination abruptly is not recommended, as it can cause withdrawal symptoms like rebound anxiety or a rapid heart rate, even after 20 days. Since you stopped three days ago, please consult your doctor promptly. Regarding drug interactions: taking azithromycin, aceclofenac, and paracetamol alongside clonazepam and propranolol is generally acceptable for short-term use. However, aceclofenac can mildly lower the effectiveness of propranolol, and azithromycin requires caution if you have heart conditions. Please contact your doctor immediately to safely manage your anxiety treatment and ensure these medications are safe for your specific health profile.