Fungal Nail Infections (Onychomycosis): Infections of the fingernails or toenails. Skin Infections: Persistent ringworm (Tinea Corporis), Athlete?s foot (Tinea Pedis), and Jock itch (Tinea Cruris). Systemic Infections: Deep-seated fungal infections like Aspergillosis, Blastomycosis, or Histoplasmosis. Oral Thrush: Fungal infections of the mouth and throat.
Itraconazole inhibits the fungal enzyme cytochrome P450 14?-demethylase. This enzyme is responsible for creating ergosterol, a vital component of the fungal cell membrane. Without ergosterol, the fungal cell membrane becomes "leaky," causing the internal contents to spill out and the fungus to die.
Common: Nausea, abdominal pain, headache, and dizziness. Gastrointestinal: Constipation or diarrhea. Metabolic: Rare cases of liver enzyme elevation. Serious: Swelling (edema), congestive heart failure (rarely, in predisposed patients), or severe skin rashes.
Standard Itraconazole needs stomach acid and food to be absorbed. The Supra Bioavailable version is formulated to be absorbed easily regardless of food intake or stomach pH, making it more reliable.
Because it is more efficiently absorbed, a 130 mg Supra Bioavailable capsule often provides the same blood levels as a standard 200 mg capsule but with less waste.
While older versions of Itraconazole required an acidic environment, Supra Bioavailable versions generally do not require acidic drinks for absorption.
No. Fungal infections are stubborn. You must complete the full course even if the infection appears gone, or it will likely return.
Yes, Itraconazole is processed by the liver. If you are on a long-term course, your doctor will likely order periodic Liver Function Tests (LFTs).
One of the benefits of the Supra Bioavailable form is that it is less affected by antacids than regular Itraconazole, but you should still space them out by 2 hours.
It is best to avoid alcohol. Both alcohol and Itraconazole stress the liver, and combining them increases the risk of hepatotoxicity.
No. Itraconazole is generally avoided during pregnancy as it can harm the developing fetus unless the benefit clearly outweighs the risk.
It is not a common side effect, but some patients report increased skin sensitivity. Using sunscreen is a good precaution.
Be very careful. Itraconazole has many drug interactions, particularly with certain statins, blood thinners, and heart rhythm medications. Always provide a full list of meds to your doctor.
