Lortab is prescribed by doctors to combine a powerful opioid pain reliever hydrocodone and a non opioid pain reliever acetaminophen. You should not take lortab if you are allergic to hydrocodone or acetaminophen. Some medicine can interact with both hydrocodone and acetaminophen that can cause serious side effects to your health. So you should be supervised by your doctors or you can contact your doctor if you have any problem while taking lortab. You should take it as prescribed to your doctor and follow all the instructions or prescription given by the doctor. Take the liquid form of it with a measuring device or a measuring cup. You should not stop taking it for a long time because it may show withdrawal symptoms. You should contact your doctor before you stop taking it to avoid withdrawal symptoms.