It's only a 50 mcg/hr
After 1 day, I would expect yawning, runny nose and a feeling of pre-occupation something like anxiety. After 2 days: yawns, watery eyes, watery bowels, aching knees and a sensation of severe anxiety; you will think of nothing else.
The above only applies to regular use. If it was a one off, stay away from it for at least two weeks and you'll feel fine. Don't touch it for another two weeks.
- Fentanyl Information for Consumers
- Fentanyl Information for Healthcare Professionals (includes dosage details)
- Side Effects of Fentanyl (detailed)
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