frequent heartburn? the choice is yours. chalky. not chalky. temporary. 24 hour. lots of tablets. one pill. you decide. prevacid. ♪ 24 hour i takbecause you can't beatrning for my frzero heartburn.n. woo hoo! [ male announcer ] prilosec otc is the number one doctor recommended frequent heartburn medicine for 8 straight years. one pill each morning. 24 hours. zero heartburn.