One over-the-counter (OTC) medicine that can be highly addictive is codeine-containing cough syrups. Codeine is an opioid medication used to suppress coughing, and it is available in some OTC cough syrups in certain countries. While codeine is generally considered safe when used appropriately and for a short period, it can lead to dependence and addiction when misused or taken in larger quantities than recommended.
Addiction to codeine can occur when individuals use it for non-medical purposes or to achieve a euphoric effect. Prolonged and excessive use of codeine can lead to physical and psychological dependence, as with other opioid medications.
It's important to note that not all OTC medicines are highly addictive, and most OTC medications are safe when used as directed. However, it's crucial to follow the recommended dosages and usage instructions for any OTC medicine to avoid potential risks and complications. If you have concerns about the use of a specific OTC medication or potential addiction issues, it's best to consult with a healthcare professional for guidance.