Anxiety is one of the most universal withdrawal symptoms, and one of the hardest to distinguish from a standalone anxiety condition — for good reason, since they can overlap.
Why it happens
Opioids suppress activity in brain circuits involved in stress response. Withdrawal removes that suppression, producing a rebound in the body’s stress and alarm systems — this is a physiological process, not simply worry about withdrawal itself, though that can compound it.
What tends to help
- Knowing this is time-limited — anxiety during acute withdrawal typically eases as other physical symptoms resolve, even though it doesn’t feel that way in the moment
- Grounding and breathing techniques — genuinely helpful for many people, though they won’t eliminate the physiological component
- Physical comfort measures for co-occurring symptoms, since pain and discomfort intensify anxiety
- Medication for opioid use disorder addresses the underlying cause more directly than anxiety-specific measures alone
Why benzodiazepines are not the answer here, even though they treat anxiety
Benzodiazepines do reduce anxiety, but combining them with a return to opioid use — which is common during withdrawal — creates a dangerous overdose risk. "why benzodiazepines are not a withdrawal treatment" This is true even though the anxiety itself is real and severe.
When to take this more seriously
If anxiety comes with panic that feels unmanageable, or with thoughts of suicide or self-harm, that’s beyond what this page can address — please call or text 988 for support, in addition to anything else you’re doing for withdrawal.
Medically reviewed by [pending]. Sources: SAMHSA TIP 63.