If your cough lasts longer than three weeks, you must see a doctor. They will assess your symptoms to rule out infections or other underlying conditions.

Containing incorrect dosages or dangerous contaminants.

Medical professionals found that many people were using codeine linctus for long-term symptoms without addressing the underlying cause of their cough. Because it is an opioid, it can mask more serious health issues while simultaneously creating a physical and psychological addiction. How to Safely Get Help for a Cough