Content reviewed by the PillRelax Healthcare Team | Last reviewed: September 2026
Alprazolam (Xanax) and Clonazepam (Klonopin) are both benzodiazepines used for anxiety and panic disorders with different pharmacological profiles.
Key Differences
| Factor | Alprazolam (Xanax) | Clonazepam (Klonopin) |
|---|---|---|
| Onset | 15-30 minutes (fast) | 1-4 hours (slower) |
| Duration | 4-6 hours (short) | 12-24 hours (long) |
| Best for | Acute panic attacks | GAD, ongoing anxiety |
| Abuse potential | Higher (fast onset) | Lower (slower onset) |
Which Is Better for Panic Attacks?
Alprazolam’s fast onset makes it effective for acute panic management. However, Clonazepam’s longer duration provides more stable coverage throughout the day.
Dependence Risk
Both carry significant dependence risk. Alprazolam’s rapid onset and short duration create stronger reinforcement patterns, making it harder to discontinue.
