What is a common sign of opiate overdose?

A common sign of opiate overdose is coma, primarily due to the central nervous system depression that opiates induce. Opiates, such as heroin or prescription pain medications, affect the areas of the brain that regulate consciousness and can significantly slow down both respiratory and neurological function. In severe cases of overdose, this can lead to reduced responsiveness or a complete loss of consciousness, which is characterized as coma.

Coma can be life-threatening and is a critical indicator that immediate medical intervention is required. Recognizing this sign is essential for timely treatment, such as administering naloxone, which can reverse the effects of opioids and potentially save a person's life.

The other choices present signs and symptoms that are not directly indicative of opiate overdose. High blood pressure is not typically associated with opiate overdose, as the condition often results in hypotension instead. Insomnia may be related to various psychological issues but is not a characteristic feature of overdose. Erratic behavior can occur due to many factors, including other substance use or psychological conditions, but it is not a defining symptom of opiate overdose.