Positives

• Patients with Long COVID who have neuropathy symptoms or general inflammatory burden have reported subjective improvement after adding vitamin E (often 400-800 IU/day) to their routine over several weeks WebMD.
• Some patients combine vitamin E with vitamin C and other antioxidants for a stack approach to oxidative stress; subjective improvement varies by individual symptom profile WebMD.

Negatives

• Some patients tried vitamin E for several months without noticing meaningful improvement and discontinued; effect varies considerably and may depend on baseline antioxidant status WebMD.

Hurdles & Side Effects

• Patients on vitamin E doses of 300 mg/day or more on warfarin commonly see INR prolonged and bleeding risk rise; close INR monitoring is necessary when starting, stopping, or changing the dose. Cambridge.
• Most retail vitamin E sold as alpha-tocopherol alone may suppress absorption of the other tocopherols and tocotrienols; mixed-tocopherol formulations are usually more expensive but better reflect what's found in food. NIH.
• The NIH tolerable upper intake level for adults is 1,000 mg/day of supplemental alpha-tocopherol; chronic use above this can raise hemorrhagic stroke risk, and patients on antiplatelet drugs should keep doses well below this ceiling. NIH.