An uncomfortable, hard-to-ignore urge to move the legs is one of the most recognizable and most miserable withdrawal symptoms — sometimes described as feeling like something is crawling under the skin or deep in the muscles.
Why it happens
Opioids affect dopamine pathways that are also involved in regulating involuntary movement and sensation. Their absence during withdrawal disrupts this system, producing a restlessness that isn’t voluntary and isn’t manageable through willpower alone.
What tends to help
- Movement itself — walking, stretching, or gentle activity often provide temporary relief, counterintuitively
- Warm baths or heating pads on the legs
- Massage or pressure on the affected muscles
- Addressing the underlying withdrawal — this symptom responds directly to medication for opioid use disorder, more reliably than symptom-specific measures alone
What doesn’t help, despite being commonly suggested
There’s no strong evidence for most over-the-counter remedies marketed specifically for this — be skeptical of products advertised as a specific fix for withdrawal-related restless legs.
When this overlaps with a real diagnosis
Restless Legs Syndrome (RLS) is also a standalone neurological condition; if this symptom persists well beyond the acute withdrawal window, it’s worth mentioning to a doctor as a possible separate, ongoing condition.
Medically reviewed by [pending]. Sources: SAMHSA TIP 63.