At a Glance
Dosage
Only in Pethidine
oral
| Level | Dose |
|---|---|
| Threshold | 25 mg |
| Light | 50–100 mg |
| Common | 100–200 mg |
| Strong | 200–400 mg |
Only in Fentanyl
insufflated
| Level | Dose |
|---|---|
| Threshold | 5 μg |
| Light | 10–25 μg |
| Common | 25–50 μg |
| Strong | 50–75 μg |
sublingual
Duration
Only in Pethidine
oral
Peak
Afterglow
Onset: 30 min – 1 hrsPeak: 4 hrs – 6 hrsAfterglow: 2 hrs – 10 hrs
Only in Fentanyl
insufflated
Onset
Onset: 15 min – 30 min
Total: 1 hrs – 4 hrs
sublingual
Onset
Onset: 15 min – 30 min
Total: 1 hrs – 4 hrs
transdermal
Effects
Safety
Interaction: Pethidine + Fentanyl
No direct interaction data available between these substances. This does not mean the combination is safe.
Pethidine — Dangerous Interactions
Frequently Asked Questions
What is the difference between Pethidine and Fentanyl?
Pethidine is classified as a Opioids (Substituted piperidines) while Fentanyl is classified as a Opioids (Anilidopiperidine, Substituted piperidines). They share 21 effects in common, with 3 effects unique to Pethidine and 5 unique to Fentanyl.
Is it safe to combine Pethidine and Fentanyl?
There is no direct interaction data available for combining Pethidine and Fentanyl. This does not mean the combination is safe. Always exercise caution and research thoroughly.
Which is stronger, Pethidine or Fentanyl?
Pethidine and Fentanyl are typically administered via different routes, making a direct potency comparison difficult. They belong to different pharmacological profiles and should not be compared by dose alone.