Is it possible to have a chlordiazepoxide overdose?

Absolutely: One should consider reduction or stopping the dose if fatigued, confused, or prone to losing control.

Chlordiazepoxide O/D: Yes, possible OD sx's include: "Difficulty breathing, Shallow breathing, Difficulty urinating, Double vision or blurred vision, Rapid side-to-side movement of the eyes, Irregular heartbeat, Low blood pressure, Rapid heartbeat, Coma, Confusion, Depression, Dizziness, Drowsiness, Low body temperature, Memory loss, Seizures, Stupor, Tremor, Uncoordinated movements, Weakness, Bluish-colored lips>>>