SN instructed patient / caregiver on Hydrocodone is an orally active narcotic analgesic ( pain reliever ) and antitussive ( cough suppressant ). SN instructed patient / caregiver that common side effects include dizziness, light - headedness, nausea, sedation, vomiting. SN instructed that side effects may be alleviated by lying down, and if they persist or worsen to notify physician. SN instructed to call physician immediately if the patient experiences slow / irregular breathing, slow / irregular heartbeat, change in the amount of urine or any allergic reactions. SN instructed patient / caregiver not to take more than 8 tabs in one day and wait 6 hours in between administration to avoid complications.