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Noxafil Side Effects

Generic name: posaconazole

Medically reviewed by Drugs.com. Last updated on Nov 5, 2024.

Note: This document provides detailed information about Noxafil Side Effects associated with posaconazole. Some dosage forms listed on this page may not apply specifically to the brand name Noxafil.

Applies to posaconazole: oral powder for suspension extended release, oral suspension, oral tablet delayed release.

Other dosage forms:

Serious side effects of Noxafil

Along with its needed effects, posaconazole (the active ingredient contained in Noxafil) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking posaconazole:

More common side effects

  • black, tarry stools
  • bleeding in the gums
  • blood in the urine or stools
  • bloody nose
  • blurred vision
  • body aches or pain
  • chest tightness
  • confusion
  • cough
  • decreased urine
  • diarrhea
  • difficult or labored breathing
  • dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  • drowsiness
  • dry mouth
  • fever or chills
  • fruit-like breath odor
  • heavy non-menstrual vaginal bleeding
  • increased thirst or urination
  • irregular heartbeats
  • loss of appetite
  • loss of voice
  • mood changes
  • muscle pain, cramps, spasms, or twitching
  • nausea or vomiting
  • numbness or tingling in the hands, feet, lips, mouth, or fingertips
  • painful cold sores or blisters on the lips, nose, eyes, or genitals
  • painful or difficult urination
  • pale skin
  • pinpoint red spots on the skin
  • pounding in the ears
  • seizures
  • slow or fast heartbeat
  • small red or purple spots on the skin
  • sores, ulcers, or white spots on the lips, tongue, or inside the mouth
  • stomach pain
  • sweating
  • swelling of the ankles or hands
  • tender, swollen glands in the neck
  • trembling
  • trouble swallowing
  • unexplained weight loss
  • unusual bleeding or bruising
  • yellow eyes or skin

Less common side effects

  • fainting
  • irregular heartbeat, recurrent

Incidence not known

  • anxiety
  • change in mental status
  • chest pain or discomfort
  • darkening of the skin
  • itching or skin rash
  • mental depression
  • seizures
  • swelling of the eyes or eyelids
  • swelling of the face, fingers, feet, or lower legs
  • trouble breathing
  • weakness

Other side effects of Noxafil

Some side effects of posaconazole may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common side effects

  • acid or sour stomach
  • back pain
  • belching
  • difficulty having a bowel movement (stool)
  • heartburn
  • lack or loss of strength
  • muscle stiffness
  • pain in the joints
  • trouble sleeping

Less common side effects

  • bad, unusual, or unpleasant (after) taste
  • change in taste

For healthcare professionals

Applies to posaconazole: intravenous solution, oral delayed release tablet, oral powder for reconstitution delayed release, oral suspension.

General adverse events

Thrombophlebitis was very common when multiple doses of the injection were administered via peripheral venous catheter, leading to administration via central venous catheter in later studies. The most common side effects reported with the IV injection were diarrhea, hypokalemia, pyrexia, and nausea.

The most common side effects reported with the delayed-release tablets were diarrhea, pyrexia, and nausea. The most common side effect leading to discontinuation of the delayed-release tablets was nausea (2%).

In the clinical trial of the injection and delayed-release tablet for treatment of invasive aspergillosis, the most common side effects leading to discontinuation of therapy included septic shock, respiratory failure, and bronchopulmonary aspergillosis.

The most common side effects reported with the oral suspension in the prophylaxis clinical trials were fever, diarrhea, and nausea. The most common side effects leading to discontinuation of the oral suspension in these trials were associated with gastrointestinal disorders, including nausea (2%), vomiting (2%), and increased liver enzymes (2%).

The most common side effects reported with the oral suspension in the oropharyngeal candidiasis and refractory oropharyngeal candidiasis trials were fever, diarrhea, nausea, headache, vomiting, and coughing. The most common side effects leading to discontinuation of the oral suspension were respiratory impairment (1%) and pneumonia (1%) in patients with oropharyngeal candidiasis and AIDS (7%) and respiratory impairment (3%) in patients with refractory oropharyngeal candidiasis. Side effects occurred more often in patients with refractory oropharyngeal candidiasis. Serious side effects were reported in 55% of highly immunocompromised patients with advanced HIV disease. Fever (13%) and neutropenia (10%) were the serious side effects reported most often in these patients. Other serious side effects included altered drug levels (of other products), increased hepatic enzymes, nausea, rash, vomiting, bilirubinemia, and hepatocellular damage.[Ref]

Cardiovascular

One patient taking this drug during a clinical trial developed torsades de pointes. This severely ill patient had a history of palpitations, recent cardiotoxic chemotherapy, hypokalemia, and hypomagnesemia; risk factors that may have contributed to or confounded the patient's condition.

Dermatologic

Endocrine

Gastrointestinal

Genitourinary

Hematologic

Rare occurrences of hemolytic uremic syndrome and thrombotic thrombocytopenic purpura have been reported, generally in patients with concurrent cyclosporine or tacrolimus therapy for the prevention of transplant rejection or graft versus host disease.

Hepatic

Clinically significant liver test abnormalities during oropharyngeal candidiasis studies included increased AST, alkaline phosphatase, ALT, and total bilirubin. The majority of abnormal liver function tests in patients and healthy subjects were minor, transient, and did not lead to therapy discontinuation.

Changes in liver test results from grade 0, 1, or 2 at baseline to grade 3 or 4 during prophylaxis and aspergillosis treatment studies included changes in ALT, bilirubin, AST, and alkaline phosphatase.

Increased total bilirubin (greater than 1.5 times the upper limit of normal [1.5 x ULN]: up to 22%), AST (greater than 3 x ULN: up to 17%), and ALT (greater than 3 x ULN: up to 11%) were reported.

Hypersensitivity

Local

In initial studies of healthy subjects, use of a single dose of this drug infused over 30 minutes via a peripheral venous catheter was associated infusion site reactions (12%), including thrombophlebitis (4%). Incidence of thrombophlebitis increased to 60% when multiple doses were administered via a peripheral venous catheter; therefore, in subsequent studies, this drug was administered via central venous catheter. When a central venous catheter was not readily available, patients received a single infusion over 30 minutes via a peripheral venous catheter; peripheral infusion time longer than 30 minutes led to higher incidence of infusion site reactions and thrombophlebitis.

Metabolic

Musculoskeletal

Nervous system

Ocular

Other

Alkaline phosphatase greater than 3 x ULN was reported in up to 14% of patients.

Psychiatric

Renal

Respiratory

Rare occurrences of pulmonary embolus have been reported, generally in patients with concurrent cyclosporine or tacrolimus therapy for the prevention of transplant rejection or graft versus host disease.

References

1. (2022) "Product Information. Noxafil (posaconazole)." Merck Sharp & Dohme LLC, SUPPL-27,14,13,1

2. (2021) "Product Information. Noxafil (posaconazole)." Merck Sharp & Dohme (Australia) Pty Ltd, S-CCDS-MK-5592-(IV/O

3. (2023) "Product Information. Noxafil (posaconazole)." Merck Sharp & Dohme (UK) Ltd

Further information

Noxafil side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.