Adults and children 16 years of age and over:Swallow one Zantac 75 tablet whole, with a drink of water, as soon as you have symptoms.
If symptoms persist for more than 1 hour another tablet can be taken.
For prevention of symptoms associated with eating and drinking, take one Zantac 75 tablet half to one hour beforehand.
Do not take more than 4 tablets in 24 hours.
Do not give to children under 16 years.