Brief Answer:
Yes chewing of Gutkha can cause pre leukoplakia.

Detailed Answer:
Hi & Welcome.

I appreciate your concern for the safety of Gutkha.

Use of Gutkha seems to be responsible for the Pre leukoplakia.
Pre leukoplakia is precancerous condition which may end up in a cancer if not prevented at this stage.
Chewing Gutkha (mixture of powdered areca nut, tobacco & lime) is harmful to your health.
Tobacco which is the most harmful ingredient present in Gutkha contains more than 4000 chemicals in it like nicotine which is always a risk-factor for cancer in the oral cavity.

I would therefore advise you to

1. Strictly avoid chewing Gutkha or eating various PAAN masalas, smoking, etc
2. Maintain good oral hygiene.
3. You need to be re examined again after 4-6 weeks of stopping Gutkha.

Hope I could answer your query.

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Brief Answer:
You can continue the prescribed medications.

Detailed Answer:

Hi & Welcome back.

Evit 40 contains Vitamin E which has antioxidant property and found to be useful in preventing various conditions.
Rinifol is a nutritional supplement that contains multivitamins which are essential to your overall health.

I would advise you to STOP taking Gutkha or any other harmful tobacco compounds as mentioned earlier.
Prevention is better than cure!
Wishing you best of your health.

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