The resulting mRNA is a single-stranded copy of the gene, which next must be translated into a protein molecule. During translation, which is the second major step in gene expression, the mRNA is read according to the genetic code, which relates the DNA sequence to the amino acid sequence in proteins (Figure 2).
This group of drugs followed and largely superseded another group of medications with similar effects, but a different mode of action, called H2-receptor antagonists. PPIs are among the most widely sold drugs in the world, and the first one, omeprazole, is on the WHO Model List of Essential Medicines.
Prevacid belongs to a class of drugs called proton pump inhibitors (PPI) that decrease the amount of acid produced in the stomach. PPIs block the enzyme in the wall of the stomach that produces acid. When acid is reduced, the stomach and esophagus can heal.: Prevacid (lansoprazole) is an anti-ulcer drug of the type known as Proton Pump Inhibitors (PPI).. Prevacid reduces the amount of acid produced in the stomach, and is used in the treatment and prevention of stomach and intestinal ulcers and other conditions such as erosive esophagitis and Zollinger-Ellison syndrome.