Diflucan (fluconazole): what it is and when people use it

Diflucan is the brand name for fluconazole, a common antifungal medicine. People take it for yeast infections of the mouth, throat, vagina, and some internal fungal infections. It works by stopping fungi from making a key component of their cell wall, which stops them from growing.

It’s available as a single pill, a short course, or a longer treatment depending on the infection. Because it’s widely used, you’ll see many questions about safety, drug interactions, and whether it’s okay to buy online. I’ll cover the practical stuff you need to know.

How Diflucan is usually taken

For common vaginal yeast infections, a single 150 mg tablet is a typical option. For mouth or throat infections, doctors often prescribe a short daily course (for example, a day or two up to two weeks). More serious infections need longer treatment and higher doses — your doctor will set that.

If you have kidney problems, your dose may need to change because the drug is cleared by the kidneys. Don’t change dose or stop treatment without talking to your provider.

Safety, side effects, and interactions

Most people tolerate Diflucan well. Common side effects include headache, upset stomach, and mild skin rash. Serious but rare problems are liver injury and severe allergic reactions. If you get yellowing of the skin, dark urine, or severe stomach pain, seek medical help.

Fluconazole mixes with several drugs. It can boost blood thinning from warfarin, raise levels of some cholesterol medicines (like simvastatin), and affect anticonvulsants (phenytoin) and certain heart medicines that change heart rhythm (QT prolonging drugs). Tell your doctor about every prescription, over‑the‑counter drug, and supplement you take.

It’s not the best choice in pregnancy unless your doctor says so. A single 150 mg dose for a vaginal yeast infection is sometimes avoided during early pregnancy; check with your healthcare provider first.

Also note resistance is possible. If symptoms don’t clear or return quickly after treatment, you may need another test or a different antifungal.

Storage is simple: keep tablets in a cool, dry place away from children. Finish the prescribed course unless your clinician tells you otherwise.

Thinking about buying Diflucan online? Many countries require a prescription. If you order online, choose a licensed pharmacy with clear contact info, a pharmacist you can reach, and secure payment. Watch out for sites that sell prescription drugs without asking for a prescription or offer prices that look too good to be true — those are often selling fakes.

Want more? Under the Diflucan tag here you’ll find guides on dosing, safety tips, drug comparisons, and how to spot safe online pharmacies. If you’re unsure about symptoms or treatment, talk to a clinician — antifungals work well when used the right way.