A nurse is reinforcing teaching with a client who has GERD and a prescription for pantoprazole. Which of the following statements indicates an understanding of the teaching?

"I can take antacids at the same time as this medication."

"I have to take this medication on an empty stomach."

"I should expect to have diarrhea while taking this medication."

"I will need to remain upright for 1 hour after taking the medication."