Which of the following is NOT a withdrawal symptom of opiates?

Withdrawal from opiates is a well-documented phenomenon that can produce a range of physical and psychological symptoms as the body reacts to the absence of the substance it has become accustomed to after prolonged use. Common symptoms of opiate withdrawal include nausea, yawning, and goosebumps, all of which are responses associated with the abrupt cessation of opiate intake.

Nausea occurs as part of the body's physiological response to withdrawal, leading to digestive disturbances. Yawning is widely recognized as a common symptom, which can be linked to autonomic nervous system changes during withdrawal. Goosebumps, or "cold turkey" skin, are a classic sign of opiate withdrawal and occur due to the disruption of the body's regulation of temperature and hair follicle activity.

In contrast, low blood pressure is not typically noted as a withdrawal symptom of opiates. Instead, opiate withdrawal is more often associated with a range of cardiovascular responses that can include increased heart rate and blood pressure, rather than hypotension. Thus, low blood pressure does not fit within the established symptoms of opiate withdrawal, making it the correct answer to identify what is NOT a withdrawal symptom.