The Effect of Food and Antacids on Lansoprazole Absorption and Disposition
Delhotal-Landes B et al. The effect of food and antacids on lansoprazole absorption and disposition. European Journal of Drug Metabolism and Pharmacokinetics. 1991: 315-320.
Methods
12 subjects received lansoprazole (Prevacid ®) 30mg in a randomized, cross-over fashion.
There were 4 arms:
- Lansoprazole on an empty stomach
- Lansoprazole with a standard meal
- Lansoprazole with 30 mL Maalox®
- Lansoprazole one hour after 30mL Maalox
NOTE: The subjects were 6 females and 6 males between the ages of 19 - 32 yrs.
Effect of food on time to maximum lansoprazole serum concentration (Tmax)

Effect of food on lansoprazole absorption Cmax and AUC

Effect of antacid (30ml Maalox®) on time to maximum lansoprazole serum concentration (Tmax)

Effect of antacid (30ml Maalox®) on lansoprazole absorption Cmax and AUC

Authors Conclusions
Lansoprazole must be administered:
- in a FASTING STATE and
- NOT WITH ANTACIDS