Sometimes zymaxid is used to treat bacterial conjunctivitis or pink eye. A generic version of zymaxid may be available in the future, Allergan, the makers of zymaxid, will lose their patent in 2016 and then the active ingredient called gatifloxacin would be the generic equivalent eye drops. Read more about generic zymaxid drops.
The longer answer is that vitamins, especially the B vitamins (thiamine, riboflavin, niacin, pantothenic acid, Vitamin B6, biotin, and folic acid) do contribute to energy metabolism, by helping your body turn carbohydrates, proteins, and fats into utilizable energy.
B Vitamins. Certain vitamins specifically support healthy metabolism, the process by which your body turns the food you eat into energy. Not getting enough of any of the eight B vitamins can cause your metabolism to slow down, making it harder for you to lose weight. You may also feel fatigued with a B vitamin deficiency, so you feel you just can't fit your workout in at the end of a long day.