Itrupt-100 capsules are available in 10x10 capsules packing under the name 100 mg itraconazole capsules. What is itraconazole 100mg used for? This medicine is used for treating fungal diseases such aspergillosis (lung infection), blastomycosis (Gilchrist's disease), and histoplasmosis (Darling's disease). It is also employed in the treatment of onychomycosis, which is a type of fungal infection associated with the fingernails or toenails. Itrupt-100 or 100 mg itraconazole capsules should only be used with a doctor's prescription.