Fluconazole is a triazole antifungal medication used to treat a wide variety of fungal and yeast infections.
Fluconazole belongs to a group of medicines called azole antifungals. It is used to stop the growth of certain fungi that can cause infection in the body. This active ingredient can be found in products such as Diflucan and the generic fluconazole tablets.
In Hong Kong, fluconazole is available both as a brand-name product (Diflun®) and as generic fluconazole tablets. The medicine comes in several forms, including oral tablets, oral suspension for children, and an injectable solution for hospital use. Different strengths are sold, for example 50 mg, 100 mg and 200 mg tablets, allowing doctors to choose the appropriate dose for each patient. All of these products are listed on the Hong Kong Department of Health’s Medicines Registry.
Fluconazole is prescribed for a range of fungal infections:
These uses are approved by the Hong Kong regulatory authorities, and in some cases clinicians may prescribe fluconazole for other fungal conditions based on their judgement.
Fluconazole interferes with a process that fungi need to build their cell membranes. By blocking this step, the drug prevents the fungus from growing and eventually leads to its death. Because it acts on the fungus rather than human cells, it usually works quickly to reduce symptoms.
Most people experience only mild, temporary effects such as:
These reactions often disappear on their own and do not require medical attention.
Although rare, some individuals may develop more severe problems, including:
If any of these signs appear, seek urgent medical help.
People with certain health conditions should discuss fluconazole with a qualified professional before using it:
Fluconazole can affect how other medicines work. Common interaction groups include:
Patients should follow the guidance on the label of their specific medication for a complete list of possible interactions.
Store fluconazole tablets in a cool, dry place away from direct sunlight, and keep the suspension bottle tightly closed. Treatment length varies: short courses are typical for skin or vaginal infections, while longer therapy may be required for systemic conditions. Always read the packaging of the exact product you have and follow the directions provided. For exact dosing, administration steps, and monitoring, refer to the individual medication’s information leaflets.
Azole antifungal: A class of medicines that stop fungi from building essential cell components.
Systemic infection: An infection that has spread throughout the body, affecting multiple organs.
CYP450: A group of enzymes in the liver that help break down many medicines.
This article offers general educational information about fluconazole as an active substance used in various medicines. Its purpose is to help patients better understand the ingredient and the conditions it is used to treat. It is not a substitute for professional medical advice or for the specific instructions provided with individual products. Medicines containing fluconazole may differ in formulation, strength, and directions for use. Always follow the guidance of a qualified healthcare professional and the labeling of your particular medication for complete information on proper use, dosage, and safety.
