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Hycodan Oral

Generic Name: HYDROCODONE/HOMATROPINE - ORAL
Pronounced: (hye-droe-KOE-done/ho-MAT-tro-peen)

Hycodan Oral Side Effects

Nausea commonly occurs with the use of hydrocodone and usually goes away after the first few doses. Consult your doctor or pharmacist about ways to decrease nausea (e.g., taking with food, lying down for 1-2 hours with as little head movement as possible).

Lightheadedness, dizziness, drowsiness, vision changes, vomiting, and constipation may also occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.

To prevent constipation, maintain a diet adequate in fiber, drink plenty of water, and exercise. If you become constipated while using this drug, consult your pharmacist for help in selecting a laxative (e.g., stimulant-type with stool softener).

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor immediately if any of these unlikely but serious side effects occur:

  • severe stomach/abdominal pain
  • slow/shallow/irregular breathing
  • difficulty waking up
  • mental/mood changes (e.g., agitation, confusion)
  • difficult/painful urination


A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include:

  • rash
  • itching/swelling (especially of the face/tongue/throat)
  • severe dizziness
  • trouble breathing


This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Hycodan Oral Precautions

Before taking this medication, tell your doctor or pharmacist if you are allergic to hydrocodone; or to homatropine; or to other narcotic medications (e.g., codeine); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of:

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