Methylnaltrexone Oral Tablet (METHYLNALTREXONE - ORAL)

Instructions

Take on an empty stomach, at least 30 minutes before the first meal of the day.

Stop taking other laxatives while using this medicine unless your doctor tells you otherwise.

Store at room temperature away from heat, light, and moisture. Do not keep in the bathroom.

Stay close to a bathroom after using this medication. This medicine works quickly. Most people have a bowel movement within a few minutes to a few hours after using this medicine.

Drink plenty of water while on this medicine.

If you forget to take a dose on time, take it as soon as you remember. If it is almost time for the next dose, do not take the missed dose. Return to your normal schedule. Do not take 2 doses at one time.

Drug interactions can change how medicines work or increase risk for side effects. Tell your health care providers about all medicines taken. Include prescription and over-the-counter medicines, vitamins, and herbal medicines. Speak with your doctor or pharmacist before starting or stopping any medicine.

Tell your doctor if symptoms do not get better or if they get worse.

Do not take the medicine more than once during 24 hours.

Cautions

Tell your doctor and pharmacist if you ever had an allergic reaction to a medicine.

This medicine may cause you to experience some withdrawal symptoms from your pain medication. Tell your doctor right away if you have unusual sweating, chills, stomach pain, diarrhea, yawning or irritability.

Do not use the medication any more than instructed.

Tell the doctor or pharmacist if you are pregnant, planning to be pregnant, or breastfeeding.

Do not share this medicine with anyone who has not been prescribed this medicine.

Some patients have serious side effects from this medicine. Ask your pharmacist to show you the information from the Food and Drug Administration (FDA) and discuss it with you.

Side Effects

The following is a list of some common side effects from this medicine. Please speak with your doctor about what you should do if you experience these or other side effects.

• nausea
• stomach upset or abdominal pain

Call your doctor or get medical help right away if you notice any of these more serious side effects:

• severe or persistent abdominal pain
• severe, watery or bloody diarrhea
• dizziness
• fainting
• fever
• severe or persistent vomiting

A few people may have an allergic reaction to this medicine. Symptoms can include difficulty breathing, skin rash, itching, swelling, or severe dizziness. If you notice any of these symptoms, seek medical help quickly.