Phenibut taper
calculator
Stopping phenibut abruptly after sustained use can cause seizures and delirium. This builds a week-by-week schedule you can weigh out at home —each row is one week's dose, in grams, as your scale will read it.
Your schedule
Hold each dose for a full week before moving down. If symptoms are strong, repeat a week rather than pushing on.
Amber rows are below 100 mg. From here the steps are fixed at 20 mg and you need a scale that reads to 0.001 g — a 0.1 g kitchen scale can't resolve them. Repeating a week is not failure.
Your 17-week taper requires:
Supporting Compounds
Over-the-counter compounds shown to help support your brain and body during withdrawal.
Published Case Reports
A summary of 25 peer-reviewed medical case reports about phenibut withdrawal, from 2008 to 2022.
This calculator gives harm reduction information based on published medical studies. It is not medical advice.
Phenibut withdrawal can be life threatening at high doses. In published studies, 24 to 48% of severe withdrawal cases needed a breathing machine.
If you use more than 1000mg a day, or have used it for more than 6 months, talk to a physician before you start tapering. In Germany, phenibut is a controlled substance under the NpSG law. Please get proper medical care.