What is pyrocalm control omeprazole? For short term treatment of reflux symptoms e.g. Heartburn, acid regurgitation in adults, aged 18 or over. What are the key features? Lasts up to 24 hours one tablet daily for effective relief of heartburn acid reflux usage how to use pyrocalm control omeprazole read the package leaflet before use.how to use take one tablet once a day. Do not exceed this dose. The tablets should be swallowed whole. Do not chew or crush the tablets. May take 2 3 days for full effect. If your symptoms worsen or do not improve after taking this medicine for 14 days in a row, contact your doctor.oral use each gastro resistant tablet contains 20mg omeprazole.usage warnings precautions to consider before taking pyrocalm control omeprazole keep out of the sight and reach of children. Do not use if you are allergic to omeprazole or any of the ingredients in this medicine. Do not use if you are taking a medicine containing nelfinavir used for hiv infection. Talk to your doctor or pharmacist if you are taking any medicines listed in the package leaflet. You are over 55 and have new or recently changed reflux symptoms. Warnings