The Pharmacological Approach to Withdrawal
Last Updated: November 2023 | 6 Minute Read
Caffeine is physically addictive. Chronic use causes the brain to up-regulate (increase the number of) adenosine receptors to compensate for the continuous blockade. When caffeine is abruptly removed, the flood of adenosine binding to these excess receptors causes severe withdrawal symptoms.
The Vasodilation Headache
Caffeine is a vasoconstrictor, narrowing blood vessels in the brain. Upon cessation, these vessels rapidly dilate, increasing blood flow and causing the hallmark throbbing withdrawal headache.
Tapering Protocols
To avoid debilitating symptoms, a controlled taper is necessary. We recommend a 10% reduction in total daily intake every 3 days. This gives the brain time to slowly down-regulate adenosine receptors.
| Phase | Daily Target | Duration |
|---|---|---|
| Baseline | 400mg | - |
| Step 1 | 360mg | Days 1-3 |
| Step 2 | 320mg | Days 4-6 |
| Step 3 | 280mg | Days 7-9 |
To plan your specific taper, use our Tolerance Reset Planner. If you need precise dosing to execute a taper, our Pure Caffeine 100mg capsules are ideal.