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Some PPIs are available over the counter or with a prescription, including: Esomeprazole (Nexium) Lansoprazole (Prevacid) Omeprazole (Prilosec) Omeprazole/sodium bicarbonate (Zegerid) Other PPIs require a prescription, including: Dexlansoprazole (Dexilant) Pantoprazole (Protonix) Rabeprazole (AcipHex) Over-the-counter PPIs are generally used for short durations at lower doses
Still, other drugs like orlistat, sold under brands like the over-the-counter Alli, or the prescription medication Xenical, have a different mechanism of action
Acetyl-L-Carnitine Benefits 
(4) What release specifications will confirm identity, assay, microbial quality, heavy metals, moisture, and capsule/tablet uniformity