Does codeine swell the stomach

Codeine itself does not directly cause stomach swelling; however, it can lead to constipation and gastrointestinal discomfort, which may contribute to feelings of bloating or swelling. Opioids like codeine can slow down digestive motility, potentially causing distension in some individuals. If you experience significant stomach swelling or discomfort while taking codeine, it's advisable to consult a healthcare professional.