Applying for driving licence.
Multi vitamins are good for your health but I doubt it's going to help you pass the DVLA medical if you're a heavy drinker. You can follow the tips on how to pass the dvla medical test but the safest way is not to drink for a period of time long enough to allow your liver to clear itself of alcohol. Now the length of time will vary from people to people depending how much you (used to) drink.
