Having unbearable pain? Must buy Lortab online with a doctor's prescription. Lortab is a pain reliever for moderate to severe pain. It contains both Acetaminophen and Hydrocodone. For different age groups and different medical conditions Lortab is available in 3 dosages like Lortab 10-325 mg, Lortab 7.5-325 mg and Lortab 5-325 mg. Before taking extra doses check the warning.