After receiving Sublocade, most patients experience a significant improvement in both their cravings and withdraw symptoms. Some patients feel a bit fatigued after receiving their dose, but this is only a temporary side-effect and will resolve within a few hours to a few days. However, there are some side-effects patients may experience when they begin their journey on Sublocade. This may include: - Constipation - Dizziness - Fatigue - Headache - Soreness around the injection site - Nausea - Vomiting If side-effects last longer than a few weeks, or are causing high levels of discomfort, it’s important to consult your doctor as soon as possible as your treatment plan may need to be altered.