To learn more, consult your physician or pharmacist. For medical advice about side effects, contact your doctor. This is not an exhaustive list of side effects associated with the use of ketoconazole. Common side effects of ketoconazole tablets include: nausea, vomiting, stomach pain, diarrhea, headache, drowsiness, dizziness, fever, chills, and sensitivity to sunlight. Common side effects of ketoconazole shampoo include: rash and worsening of dandruff. Take a look at the "Ketoconazole Precautions" section. Serious side effects have been reported. Call 1-800-FDA-1088 to report side effects to the FDA.
If you must take an antacid, do so either one hour prior to or two hours after taking ketoconazole. A severe heart condition may result from ketoconazole use. Drug interactions involving ketoconazole (more information) Ketoconazole can be impacted by a wide variety of medications. Not all potential interactions are covered in this list. Other medications you take may have their blood levels affected by certain medications, which could increase their side effects or reduce their efficacy. Your body's ability to absorb ketoconazole may be hampered by some medications. Utilizing certain medications concurrently is occasionally not advised. Tell your doctor about all of the medications you are taking now as well as any new or discontinued ones. Tell your doctor if you also take a stomach acid reducer, such as Nexium, Prevacid, Prilosec, Protonix, Zantac, and others. This covers both prescription and non-prescription drugs, vitamins, and herbal products. If you also take medications for HIV, cancer, malaria, asthma, heart disease, high blood pressure, depression, or mental illness, your risk may be increased.
By avoiding alcohol, you'll also reduce your chance of experiencing a rare side effect from ketoconazole that could cause flushing, headaches, and nausea. Inform your surgeon or dentist of everything you use, including prescription, over-the-counter, and herbal products, before the procedure. If you have any allergies, including those to other azole antifungal medications (like fluconazole and itraconazole), levoxytoconazole, other azole antifungal medications, or any other substances, let your doctor or pharmacist know before taking ketoconazole. If you have any of the following conditions, including a family history of certain heart conditions (QT prolongation in the EKG, sudden cardiac death), tell your doctor or pharmacist before taking ketoconazole. These conditions include all the medications you take and any heart problems you may have, such as heart failure, a slow heartbeat, or QT prolongation. Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver problems, alcohol use, low testosterone levels, decreased adrenal gland function problems (such as low cortisol levels, Addison's disease, adrenal insufficiency), little or no stomach acid production (achlorhydria). Before breastfeeding, talk to your doctor. With your doctor, go over the advantages and disadvantages. Alcohol increases the risk of serious liver issues, so avoid drinking while taking this medication. Only use this medication during pregnancy if absolutely necessary. The condition known as QT prolongation, which affects heart rhythm, may be brought on by ketoconazole. Your risk of QT prolongation may also increase if your blood contains inadequate amounts of potassium or magnesium. Especially QT prolongation (see above), older adults may be more sensitive to this medication's side effects. Fast/irregular heartbeat, along with other symptoms (like extreme dizziness and fainting), can occasionally result in QT prolongation, which necessitates immediate medical attention. Visit the Side Effects section as well. The safe use of ketoconazole can be discussed with your doctor. Get more information by speaking with your pharmacist. If you take other medications or have certain medical conditions that can lead to QT prolongation, your risk of experiencing it may increase. This medication enters breast milk. This product might include inactive components that could lead to allergic reactions or other issues. This risk could rise if you take specific medications (like diuretics or "water pills") or experience certain health issues, like excessive sweating, diarrhea, or vomiting.