Sapropterin tablets

What is this medication?

SAPROPTERIN (SAP roe TER in) works to lower phenylalanine levels in the blood. It is used with a special diet to treat phenylketonuria. This medicine is not a cure.

This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.

COMMON BRAND NAME(S): JAVYGTOR, KUVAN

What should I tell my care team before I take this medication?

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

•eating disorder like anorexia, bulimia

•fever

•infection

•kidney disease

•liver disease

•seizures

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

•pregnant or trying to get pregnant

•breast-feeding

How should I use this medication?

Take this medicine by mouth with food. Follow the directions on the prescription label. Tablets may be swallowed whole or you may dissolve tablets in 4 to 8 ounces (120 to 240 ml) of water or apple juice. Drink within 15 minutes of mixing. To make tablets dissolve faster, you may crush or stir them. Tablets may not dissolve completely, and you may see small pieces floating in the glass. If small pieces remain in the glass after taking the medicine, add more water or apple juice to the glass and drink it to make sure you get all of the medicine. Tablets may also be crushed and then mixed in a small amount of apple sauce or pudding. Take your medicine at regular intervals. Do not take it more often than directed. Do not stop taking except on your doctor's advice.

Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 1 month of age for selected conditions, precautions do apply.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.

NOTE: This medicine is only for you. Do not share this medicine with others.

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.

What may interact with this medication?

• avanafil
• levodopa
• methotrexate
• pemetrexed
• pyrimethamine
• sildenafil
• tadalafil
• vardenafil

This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

What should I watch for while using this medication?

Your condition will be monitored carefully while you are receiving this medicine. Visit your doctor for regular check ups and for blood tests. It may take up to 4 weeks for your body to respond to this medicine.

Tell your doctor or health care professional if your symptoms do not start to get better or if they get worse.

You will need to be on a special diet while you are taking this medicine. Talk with your health care professional before making any changes to your diet.

What side effects may I notice from receiving this medication?

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

•black or bloody stools, blood in the vomit

•breathing problems

•feeling faint or lightheaded, falls

•hyperactivity, being fidgety or talking or moving around too much

•severe abdominal pain

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

•cough

•diarrhea

•headache

•nausea, vomiting

•sore throat

•runny or congested nose

This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Where should I keep my medication?

Keep out of the reach of children.

Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F). Store this medicine in the original container. Keep the container tightly closed. Throw away any unused medicine after the expiration date.

NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.