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Noxafil

Posaconazole

POSACONAZOLE is an antifungal medicine. It is used to treat or prevent certain kinds of fungal or yeast infections. Compare azole antifungals.
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What is Noxafil?

Commonly Used Brand Name(s)Noxafil

Therapeutic ClassificationsAntifungal

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OverviewTOP

Posaconazole delayed-release tablets and oral suspension are used to prevent certain fungus (yeast) infections in patients 13 years of age and older, who have a weakened immune system (eg, hematopoietic stem cell transplant or HSCT recipients, or patients with blood cancers). Posaconazole oral suspension is also used to treat a fungus infection of the mouth or throat called oral thrush (candidiasis). Posaconazole oral suspension may be used as an initial treatment or after treatment with other antifungal medicines (eg, itraconazole or fluconazole) have failed.

This medicine is available only with your doctor's prescription.

Proper UseTOP

Take this medicine exactly as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered.

This medicine should come with a patient information leaflet. Read and follow these instructions carefully. Ask your doctor if you have any questions.

Swallow the delayed-release tablet whole. Do not crush, break, or chew it. Take this medicine with food.

If you are using the oral liquid:

  • Shake the oral liquid well before measuring the dose. Use the dosing spoon in the package to measure the dose. The average household teaspoon may not hold the right amount of liquid. Rinse the measuring spoon with water after using and before storage.
  • Take this medicine during or right after (within 20 minutes) a full meal or liquid nutritional supplement. This medicine may also be taken with an acidic beverage (eg, ginger ale).

This medicine works best when there is a constant amount in the blood. To help keep the amount constant, do not miss any doses. Also, it is best to take each dose at the same time every day. If you need help in planning the best time to take your medicine, check with your doctor.

DosingTOP

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For oral dosage form (delayed-release tablets):
    • For prevention of fungus infections:
      • Adults and teenagers—300 milligrams (mg) (three 100 mg delayed-release tablets) two times a day on the first day, then 300 mg once a day.
      • Children younger than 13 years of age—Use and dose must be determined by your doctor.
  • For oral dosage form (suspension):
    • For prevention of fungus infections:
      • Adults and teenagers—200 milligrams (mg) or 5 milliliters (mL) three times a day.
      • Children younger than 13 years of age—Use and dose must be determined by your doctor.
    • For initial treatment of oral candidiasis:
      • Adults and teenagers—100 milligrams (mg) or 2.5 milliliters (mL) two times a day on the first day, then 100 mg or 2.5 mL once a day for 13 days.
      • Children younger than 13 years of age—Use and dose must be determined by your doctor.
    • For treatment of oral candidiasis after failed treatment with itraconazole or fluconazole:
      • Adults and teenagers—400 milligrams (mg) or 10 milliliters (mL) two times a day.
      • Children younger than 13 years of age—Use and dose must be determined by your doctor.

Missed DoseTOP

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

Do not take this medicine if it has been more than 12 hours since you missed your last dose.

Use & StorageTOP

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.

Before UsingTOP

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:

AllergiesTOP

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

PediatricTOP

Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of posaconazole in teenagers 13 to 17 years of age. However, safety and efficacy have not been established in children younger than 13 years of age.

GeriatricTOP

Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of posaconazole in the elderly.

PregnancyTOP

Pregnancy CategoryExplanation
All TrimestersCAnimal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women.

Breast FeedingTOP

There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Drug InteractionsTOP

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.

Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

Other InteractionsTOP

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Other Medical ProblemsTOP

The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:

  • Heart disease, history of or
  • Heart rhythm problems (eg, arrhythmia, QT prolongation) or
  • Liver disease or
  • Mineral imbalance (low potassium, magnesium, or calcium in the blood)—These conditions may cause side effects to become worse.

PrecautionsTOP

It is very important that your doctor check your progress at regular visits. This will allow your doctor to see if the medicine is working properly and to decide if you should continue to take it. Blood tests will be needed to check for unwanted effects.

You should not use atorvastatin (Lipitor®), lovastatin (Mevacor®), pimozide (Orap®), quinidine (Quinaglute®), simvastatin (Zocor®), sirolimus (Rapamune®), or ergotamine medicines (eg, bromocriptine, dihydroergotamine, ergonovine, ergotamine, methylergonovine, methysergide, Cafergot®, Ergomar®, Wigraine®). Using any of them together with this medicine may increase the chance of unwanted effects.

This medicine can cause changes in heart rhythms, such as a condition called QT prolongation. It may change the way your heart beats and cause fainting or serious side effects in some patients. Contact your doctor right away if you have any symptoms of heart rhythm problems, such as fast, pounding, or irregular heartbeats.

Check with your doctor right away if you have pain or tenderness in the upper stomach, pale stools, dark urine, loss of appetite, nausea, unusual tiredness or weakness, or yellow skin or eyes. These could be symptoms of a serious liver problem.

Check with your doctor right away if you have severe diarrhea or vomiting while using this medicine.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.

Chemical ClassificationsTOP

Triazole
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