The likely underlying pathophysiological mechanism is the codein-induced spasm of the sphincter of Oddi combined with dysfunction of the same sphincter and … stomach pain or cramps; trouble sleeping; tunnel vision; weight loss. Other side effects not listed may also occur in some patients. If you notice any other … The authors describe a 33-year-old woman who experienced severe pain in the epigastrium after codeine intake. This side-effect is consistent with that of … Immediate action required: Call 999 now if: you have chest pain; you have severe stomach pain – this can be a sign of a hole in your stomach … Contact your doctor if you experience severe upper abdominal pain possibly radiating to the back, nausea, vomiting or fever as this could be symptoms associated … If you take too much Paracetamol/Codeine GH 500/15, you will probably feel nauseous, experience stomach pain, sweating, anxiety, lightheaded, dizzy, or drowsy. … stomach cramps, muscle aches, or backache. If you are taking codeine oral solution or syrup, do not use a household spoon to measure your dose. Explore related subjects. Discover the latest articles, books and news in related subjects, suggested using machine learning. Abdominal Pain … Codeine-based medication: This is a stronger type of pain relief and comes in different strengths. It is often combined with paracetamol (co …