Answer
Yes. Restlessness, tremor, stiffness, slowed movement, muscle spasms and persistent involuntary movements can occur and should be reported promptly.
Sources for this answer
- HALDOL Decanoate 50 mg/ml solution for injection and HALDOL Decanoate 100 mg/ml solution for injection — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.