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What happens if I miss a dose (Effexor, Effexor XR)?
Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose (Effexor, Effexor XR)?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include vomiting, fast heart rate, blurred vision, extreme drowsiness, or seizure (convulsions).
What should I avoid while taking venlafaxine (Effexor, Effexor XR)?
Avoid drinking alcohol, which can increase some of the side effects of venlafaxine.
Venlafaxine may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.
What other drugs will affect venlafaxine (Effexor, Effexor XR)?
Before using venlafaxine, tell your doctor if you regularly use other medicines that make you sleepy (such as cold or allergy medicine, sedatives, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures or anxiety). They can add to sleepiness caused by venlafaxine.
Ask your doctor before taking a nonsteroidal anti-inflammatory drug (NSAID) for pain, arthritis, fever, or swelling. This includes aspirin, ibuprofen (Advil, Motrin), naproxen (Aleve, Naprosyn, Naprelan, Treximet), celecoxib (Celebrex), diclofenac (Arthrotec, Cambia, Cataflam, Voltaren, Flector Patch, Pennsaid, Solareze), indomethacin (Indocin), meloxicam (Mobic), and others. Using an NSAID with venlafaxine may cause you to bruise or bleed easily.
Tell your doctor about all other medications you use, especially:
This list is not complete and there are many other drugs that can interact with venlafaxine. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.
Where can I get more information?
Your pharmacist can provide more information about venlafaxine.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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