Ondansetron Hydrochloride Oral tablet

What is this medicine?

ONDANSETRON (on DAN se tron) is used to treat nausea and vomiting caused by chemotherapy. It is also used to prevent or treat nausea and vomiting after surgery.

How should I use this medicine?

Take this medicine by mouth with a glass of water. Follow the directions on your prescription label. Take your doses at regular intervals. Do not take your medicine more often than directed.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:

  • allergic reactions like skin rash, itching or hives, swelling of the face, lips or tongue

  • breathing problems

  • confusion

  • dizziness

  • fast or irregular heartbeat

  • feeling faint or lightheaded, falls

  • fever and chills

  • loss of balance or coordination

  • seizures

  • sweating

  • swelling of the hands or feet

  • tightness in the chest

  • tremors

  • unusually weak or tired

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • constipation or diarrhea

  • headache

What may interact with this medicine?

Do not take this medicine with any of the following medications:

  • apomorphine

  • certain medicines for fungal infections like fluconazole, itraconazole, ketoconazole, posaconazole, voriconazole

  • cisapride

  • dofetilide

  • dronedarone

  • pimozide

  • thioridazine

  • ziprasidone

This medicine may also interact with the following medications:

  • carbamazepine

  • certain medicines for depression, anxiety, or psychotic disturbances

  • fentanyl

  • linezolid

  • MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate

  • methylene blue (injected into a vein)

  • other medicines that prolong the QT interval (cause an abnormal heart rhythm)

  • phenytoin

  • rifampicin

  • tramadol

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

Where should I keep my medicine?

Keep out of the reach of children.

Store between 2 and 30 degrees C (36 and 86 degrees F). Throw away any unused medicine after the expiration date.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

  • heart disease

  • history of irregular heartbeat

  • liver disease

  • low levels of magnesium or potassium in the blood

  • an unusual or allergic reaction to ondansetron, granisetron, other medicines, foods, dyes, or preservatives

  • pregnant or trying to get pregnant

  • breast-feeding

What should I watch for while using this medicine?

Check with your doctor or health care professional right away if you have any sign of an allergic reaction.



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