Hydrocodone-APAP is a combination drug that contains hydrocodone and acetaminophen, and is used to treat moderate to severe pain, notes WebMD. Hydrocodone is a narcotic pain medication that changes the body's response to pain. Acetaminophen is a mild pain reliever that enhances the effects of hydrocodone, states Everyday Health.
Patients with a history of liver disease, alcoholism, bowel disorders, breathing problems or head injuries should consult with their doctor before taking hydrocodone-APAP, according to Everyday Health. Because this medication can be habit-forming, it's important to avoid sharing it with others, especially those with a history of drug abuse or addiction. Misusing hydrocodone-APAP may lead to overdose symptoms, such as extreme drowsiness, pinpoint pupils, cold and clammy skin, weak pulse and shallow breathing. Overdose can also cause liver damage or death. If overdose symptoms occur, emergency medical attention is necessary.
Common side effects of hydrocodone-APAP include constipation, headache, dry mouth, blurred vision and upset stomach, notes Everyday Health. Because taking this medication may cause impaired reactions, drowsiness or dizziness, patients should avoid driving or operating heavy machinery until they know how hydrocodone-APAP affects them. Serious side effects should be reported to a doctor immediately, including lightheadedness, confusion, seizures, skin rash or redness, and yellowing of the skin or eyes.