Nexium 20 mg is a prescription medication containing esomeprazole, available in a pack of 14 tablets. It belongs to a class of drugs called proton pump inhibitors (PPIs) that reduce stomach acid production. This medication is manufactured by AstraZeneca and comes in a purple-colored package containing 14 tablets, with each tablet containing 20 mg of esomeprazole as the active ingredient. Please consult your healthcare provider before use as this is a prescription medication.