Flumazenil is used as Benzodiazepine overdose.

Flumazenil is an antitode, which is used to reverse the effect of medicine “benzodiazepine” given during surgery for sedation. It blocks the action of benzodiazepines by acting on GABA receptors, thereby reversing the sedation effect.

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them