2. What are the most common side effects of opioids? I’ve heard that people are always constipated when they’re on morphine …

The most common side effects are drowsiness, nausea and dizziness, especially at the start of treatment, and they are generally short lived. Constipation is common; it usually lasts for as long as the person is taking opioids. Healthy lifestyle habits are recommended, such as drinking enough water, making sure you have a high-fibre diet and exercising. A prescription for laxatives can also help.