Is it normal for tramadol to only work for an hour? i take 50mg for parasthesia.

Tolerance: When any opioid, including tramadol, is used for several weeks or months, a patient may develop tolerance to it. When that happens it does not help as much as it did in the past. This is when non-opioid therapy ought to be pursued, including anti-inflammatory and antioxidant foods, positive thoughts, emotions, visualizations, and beliefs, relaxation, acupuncture, meditation, and physical therapy.