I Have Been Taking This Drug For Two Days. I

I have been taking this drug for two days. I am having a tremendous amount of gas. I've been taking gas-x, but have taken the limit. I am in a great deal of distress. My doctors instructions are to take this drug 4 x day, which means I had four yesterday and four today. Just took my last pill. What can I do to stop this incessant gas? MARY ANN KIRK [ 87 years old].