- allergic (hypersensitive) to itraconazole or any of the ingredients of this medicine (listed in Section 6)
- pregnant, think you might be pregnant or could become pregnant (see the section on Pregnancy)
Do not take Itraconazole if any of the above apply to you. If you are not sure, talk to your doctor or pharmacist before having this medicine.
Do not use Itraconazole if you are taking any of the following medicines, or within 2 weeks of stopping Itraconazole:
Examples of these medicines are:
Medicines to treat problems with the heart, blood or circulation
- aliskiren, eplerenone, lercanidipine or nisoldipine (for high blood pressure)
- bepridil, ivabradine or ranolazine - (for angina)
- dabigatran or ticagrelor (for blood clots)
- disopyramide, dofetilide, dronedarone or quinidine (for irregular heart beat rhythms)
- finerenone (for kidney problems in patients with type 2 diabetes)
- lomitapide, lovastatin or simvastatin (to lower cholesterol)
- sildenafil when used to treat pulmonary hypertension (increased blood pressure in the blood vessels in the lungs).
Medicines to treat stomach problems or constipation
- cisapride (for stomach upsets)
- domperidone (for nausea and vomiting)
- naloxegol (for constipation caused by taking opioid painkillers)
Medicines to treat headaches, sleep or mental health problems
- dihydroergotamine or ergotamine (ergot alkaloids used for migraine headaches)
- midazolam (taken by mouth) or triazolam (for sedation or to help you sleep)
- lurasidone, pimozide, quetiapine or sertindole (for schizophrenia, bipolar disorder or other mental health problems)
Medicines for problems passing water or bladder problems
- darifenacin (for when you lose control of your bladder)
- fesoterodine or solifenacin (for irritated urinary bladder) when used in patients with certain kidney or liver problems
Medicines to treat allergies
- astemizole, mizolastine or terfenadine (anti-histamines for allergies)
Medicines to treat erection and ejaculation problems
- avanafil (for erectile dysfunction)
- dapoxetine (for premature ejaculation)
- vardenafil (for erectile dysfunction) when used in men older than 75 years of age
Other medicines containing:
- colchicine (for gout) when used in patients with kidney or liver problems
- ergometrine (ergonovine) or methylergometrine (methylergonovine) ergot alkaloids used after giving birth
- eliglustat (for Gaucher's disease) when used in patients that cannot break down certain medicines in the body
- halofantrine (for malaria)
- irinotecan (for cancer)
- isavuconazole (for fungal infections)
- ombitasvir, paritaprevir, ritonavir with or without dasabuvir - (to treat hepatitis C)
- venetoclax (for chronic lymphocytic leukaemia) when you newly start venetoclax or take increasing doses at beginning of treatment
- voclosporin (to treat lupus-related kidney problems)
Remember - do not take any of the medicines above for 2 weeks after your last treatment with Itraconazole.
This is not a complete list, so tell your doctor if you are taking or planning to take any of these medicines, or any other medicines.
Look out for serious side effects
Stop taking Itraconazole and see your doctor immediately if any of the following symptoms of severe liver problems appear during your course of treatment:
- you have severe loss of appetite, unusual tiredness, stomach pain, very dark urine or pale stools, or you feel or are sick – they may be signs or severe liver problems
- you have any unusual feelings of tingling, numbness or weakness in your hands or feet – or become sensitive to light
- you have any hearing loss – in very rare cases patients taking itraconazole have reported temporary or permanent hearing loss
- Stop taking Itraconazole and tell your doctor straight away if you have any of the above or are not sure.
Tell your doctor
You must tell your doctor before taking itraconazole if you have ever had:
- had an allergic reaction to any other antifungal medicines
- a heart problem, including heart failure (also called congestive heart failure or CHF), Itraconazole could make it worse. If your doctor decides to give you Itraconazole, you should be told about the symptoms listed below to watch out for. If you get any of the following stop taking Itraconazole and tell your doctor straight away. These may be signs of heart failure:
- shortness of breath
- unexpected weight gain
- swelling of your legs or stomach
- feel unusually tired
- wake up short of breath at night
- a liver problem, such as jaundice (yellowing of the skin) as your dose of Itraconazole may have to be changed. Your doctor should give you instructions on symptoms to watch out for. If you have to take Itraconazole continuously for more than one month, your doctor may want to check your liver by doing blood tests. In addition, there may be specific medication you may not be able to take
- cystic fibrosis (a genetic disease affecting the lungs, pancreas, liver, kidneys and intestines)
- a kidney disorder, as your dose of Itraconazole may have to be changed. In addition, there may be specific medication you may not be able to take.
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicine.
Medicines you must not take
There are some medicines that you should not take whilst taking Itraconazole. These are listed under the heading “Medicines you must not take with Itraconazole oral solution ”
Certain medicines are not recommended for use with Itraconazole.
Your doctor may decide that you should not take some medicines at the same time as, or within 2 weeks of stopping Itraconazole.
Examples of these medicines are:
Medicines to treat problems with the heart, blood or circulation
- apixaban, edoxaban, rivaroxaban or vorapaxar (for blood clots)
- atorvastatin (to lower cholesterol)
- felodipine (for high blood pressure)
- riociguat or tadalafil when used to treat pulmonary hypertension) (increased blood pressure in the blood vessels in the lungs)
Medicines to treat epilepsy, headaches or mental health problems
- phenytoin, carbamazepine or phenobarbital (anti-epileptics)
- eletriptan (for migraine headaches)
- St. John's Wort (Hypericum perforatum) (a herbal medicine used for mental health problems)
Medicines for problems passing water or bladder problemsto
- tamsulosin (for male urinary incontinence)
- tolterodine (for irritated urinary bladder)
Medicines to treat cancer
- axitinib, bosutinib, cabazitaxel, cabozantinib, ceritinib, cobimetinib, crizotinib, dabrafenib, dasatinib, docetaxel, entrectinib, glasdegib, ibrutinib, lapatinib, nilotinib, olaparib, pazopanib, regorafenib, sunitinib, talazoparib, trabectedin, trastuzumab emtansine, venetoclax (when you are on a stable dose of venetoclax for chronic lymphocytic leukaemia, or at any time of treatment for acute myeloid leukaemia) or vinca alkaloids (e.g., vinflunine, vinorelbine)
Medicines to treat tuberculosis
- bedaquiline, isoniazid, rifabutin or rifampicin (for tuberculosis)
Medicines to treat human immunodeficiency virus (HIV) or hepatitis
- efavirenz or nevirapine (for HIV/AIDS)
- elbasvir/grazoprevir, tenofovir alafenamide fumarate (TAF), tenofovir disoproxil fumarate (TDF) (for HIV or hepatitis)
Medicines used after organ transplant
- everolimus, rapamycin (also known as sirolimus), temsirolimus
Medicines to treat benign prostatic enlargement
Medicines to treat inflammation, lung problems or allergies
- ciclesonide (for inflammation, asthma and allergies)
- ebastine (for allergies)
- salmeterol (for asthma or chronic obstructive pulmonary disease - COPD)
Medicines to treat erection and ejaculation problems
- tadalafil or vardenafil (when used in men 75 years of age and younger) (for erectile dysfunction)
Other medicines containing:
- colchicine (for gout)
- fentanyl (for pain)
- lumacaftor/ivacaftor (for cystic fibrosis)
- everolimus, rapamycin (also known as sirolimus) or temsirolimus (given after an organ transplant)
- alfuzosin or silodosin (for benign prostatic enlargement)
Tell your doctor before taking Itraconazole if you are taking any of the above medicines.
Also, after finishing your course of Itraconazole, you need to wait 2 weeks before taking these medicines
This is not a complete list, so tell your doctor if you are taking or planning to take any of these medicines, or any other medicines.
Medicines where the dose may need to be altered
Tell your doctor before taking certain medicines – as the dose of Itraconazole or other treatments may need to be altered. Examples of these medicines are:
Medicines to treat problems with the heart, blood or circulation
- bosentan (for pulmonary hypertension)
- calcium channel blockers such as, dihydropyridines such as amlodipine, isradipine, nifedipine, nimodipine or diltiazem (for hypertension)
- or verapamil (for high blood pressure)
- cilostazol (for circulatory problems)
- 'coumarins' such as warfarin (for blood clots)
- digoxin (for atrial fibrillation)
- nadolol (for pulmonary hypertension or angina)
Medicines to treat stomach problems or diarrhoea
- aprepitant or netupitant (for nausea and vomiting during cancer treatment)
- loperamide (for diarrhoea)
- antacids such as aluminium, calcium, magnesium, or sodium bicarbonate; H2-receptor antagonists such as cimetidine, ranitidine and proton pump inhibitors such as lansoprazole, omeprazole, rabeprazole (to treat stomach acid problems)
Medicines to treat sleep problems or mental health problems
- Alprazolam, brotizolam, buspirone, or midazolam (when injected into a vein) (for anxiety or to help you sleep)
- zopiclone (to help you sleep)
- reboxetine or venlafaxine (for depression and anxiety)
- aripiprazole, cariprazine, haloperidol or risperidone (for schizophrenia, bipolar disorder or other mental health problems)
- galantamine (for Alzheimer's disease)
- guanfacine (for attention deficit hyperactivity disorder)
Medicines for problems passing water or bladder
- imidafenacin, fesoterodine, oxybutynin, solifenacin (for irritated urinary bladder)
Medicines to treat cancer
- bortezomib, brentuximab vedotin busulfan, erlotinib, gefitinib, idelalisib, imatinib, nintedanib, panobinostat, pemigatinib, ponatinib, ruxolitinib, sonidegib or tretinoin (oral)
Medicines to treat infections
- ciprofloxacin, clarithromycin, or erythromycin (for bacterial infections)
- delamanid (for tuberculosis)
- artemether-lumefantrine or quinine (to treat malaria)
- praziquantel (for fluke and tapeworms)
Medicines to treat human immunodeficiency virus (HIV) or hepatitis
- cobicistat, boosted elvitegravir, maraviroc, ritonavir, ritonavir-boosted darunavir, ritonavir-boosted fosamprenavir, indinavir or saquinavir (for HIV)
- glecaprevir/pibrentasvir (for hepatitis)
Medicines used after organ transplant
- cyclosporine or tacrolimus
Medicines to treat benign prostatic enlargement
Medicines to treat inflammation, lung problems, allergies
- bilastine or rupatadine (for allergy)
- methylprednisolone or dexamethasone, (medicines given by mouth or injection for asthma, allergies or inflammatory conditions)
- budesonide or fluticasone (for asthma, allergies)
Medicines to treat erection and ejaculation problems
- sildenafil (for erectile dysfunction)
Medicines to treat pain
- alfentanil, buprenorphine, oxycodone or sufentanil (for pain)
- meloxicam (for joint inflammation and pain)
Other medicines containing:
- cyclosporine or tacrolimus (given after an organ transplant)
- dutasteride (for begign prostatin enlargement)
alitretinoin (given by mouth) (for eczema) - cabergoline (for Parkinson's disease)
- cannabis based products including medicines (such as for nausea and vomiting or muscle spasms in patients with multiple sclerosis)
- cinacalcet (for an over active parathyroid)
- dienogest or ulipristal (contraceptives)
- eliglustat (for Gaucher's disease) when used in patients that cannot break down certain medicines in the body
- ivacaftor; (for cystic fibrosis)
- methadone (to treat drug addiction)
- repaglinide or saxagliptin (for diabetes)
This is not a complete list, so tell your doctor if you are taking or planning to take any of these medicines, or any other medicines.
Tell your doctor before taking any of the above medicines - as the dose of Itraconazole or other treatments may need to be altered.
Do not take Itraconazole with food or drink as it reduces your body's ability to absorb the medicine. Always take Itraconazole one hour before any food or drink as this helps the body absorb the medicine.
Itraconazole is not normally given to children. Your doctor may prescribe it in special cases.
Itraconazole contains cyclodextrin and propylene glycol. Do not use in children less than 2 years old unless recommended by your doctor. If your child is less than 5 years old, talk to your doctor or pharmacist before giving them this medicine, in particular if the child is given other medicines that contain cyclodextrin or propylene glycol. or alcohol.
Itraconazole is not normally given to the elderly. Your doctor may prescribe it in special cases.
Do not take Itraconazole if you are pregnant, unless your doctor has told you to. If you are of child bearing age and could become pregnant, talk to your doctor. You should use effective contraceptives to make sure that you do not become pregnant while you are taking your medicine. As Itraconazole remains in the body for some time after you stop taking it, you should continue to use some form of contraception until your next period after your treatment with Itraconazole has finished.
If you do find that you are pregnant after starting a course of Itraconazole, stop taking it and tell your doctor straight away.
Before taking any medicine, always tell your doctor if you are pregnant, think you may be pregnant or are planning to have a baby.
If you are breast-feeding do not take Itraconazole, as small amounts of the medicine could be present in your breast milk. If, your doctor recommends taking Itraconazole they may carry out extra checks while you are taking this medicine.
Itraconazole oral solution can sometimes cause dizziness, blurred/double vision or hearing loss. If you have these symptoms, do not drive or use machines.
Sorbitol (E420): This medicine contains 6878.76 mg sorbitol in each 40 ml dose which is equivalent to 171.97 mg/ml. Sorbitol is a source of fructose. If your doctor has told you that you have an intolerance to some sugars or if you have been diagnosed with hereditary fructose intolerance (HFI), a rare genetic disorder in which a person cannot break down fructose, talk to your doctor before take this medicine.
Sodium: This medicine contains 1.2mmol (or 28.45mg) sodium (main component of cooking/table salt) in each 40 ml. This is equivalent to 1.43% of the recommended maximum daily dietary intake of sodium for an adult.
Cyclodextrins (E459): This medicine contains 16000 mg cyclodextrin(s) in each 40 ml dose which is equivalent to 400 mg/ml. Cyclodextrins may cause digestive problems such as diarrhoea.
Propylene glycol (E1520): This medicine contains 1636.8mg propylene glycol in each 40 ml dose which is equivalent to 40.92mg/ml.
Always take Itraconazole exactly as your doctor has told you. You should check with your doctor or pharmacist if you are not sure.
Treatment of yeast infections of the mouth, throat or gullet
The usual dose is 200mg (20ml) per day for one week. This may be taken either all at once or in two divided doses during the day.
If after one week of using Itraconazole your infection has not cleared, your doctor may decide to continue your treatment for one more week.
Treatment of yeast infections of the mouth, throat or gullet, that have already been treated with another antifungal but have still not cleared
The usual dose is 100 – 200mg (10-20ml) twice daily for two weeks. The treatment may be continued for an additional two weeks, if the infection does not clear in the initial two weeks of treatment. For patients on the higher dose of 400 mg (40ml) daily, treatment should be limited to 14 days, if there are no signs of improvement during this time.
Prevention of fungal infections
The dose is calculated according to your body weight (5 mg (0.5ml) per kg) given in two divided doses. Your doctor will tell you exactly how much you should take.
- This medicinal product must be taken orally.
- Always take Itraconazole oral solution one hour before any food or drink as this helps the body absorb the medicine.
- You should swish the oral solution around in your mouth for approximately 20 seconds before swallowing it. Do not rinse your mouth after swallowing the oral solution.
- A 30ml measuring cup graduated with 5ml (including 2.5ml and 7.5ml intermediate graduation) markings is provided. Ensure you fill the cup to the required dosing mark.
The bottle comes with a child-resistant cap, and should be opened as follows: push the plastic screw cap down, while turning it counter clockwise.
If you, or anyone else, take more Itraconazole than you were told to, contact your doctor or local hospital without delay.
If you forget to take your medicine, take the next dose as usual and continue your medicine as directed by your doctor.
Do not take a double dose to make up for a forgotten dose.
If you have any further questions on the use of Itraconazole, ask your doctor or pharmacist.
This leaflet was last revised in 04/2026.