Psychiatrymiddle twist
A 19-year-old man received his first ever dose of an antipsychotic 14 hours ago, having been admitted with psychosis. He calls the nurse because his neck has pulled hard to the left and his eyes have rolled upwards and will not come down. He is frightened but fully alert and answers questions normally. He has been lying still on his bed since the dose was given. His temperature is 36.8 °C, pulse 96/min and blood pressure 124/78 mmHg, and there is no rigidity in his limbs. Which one of the following should the intern give to relieve this?