Complex sentence: Ivermectin (22,23-dihydroavermectin B 1a + 22,23-dihydroavermectin B 1b) is a broad-spectrum antiparasitic medication, traditionally used against worms (except tapeworms), but more recently found to be effective against most mites and some lice too.
Split into simpler sentences: Ivermectin (22,23-dihydroavermectin B 1a + 22,23-dihydroavermectin B 1b) is a broad-spectrum antiparasitic medication. It is traditionally used against worms (except tapeworms), but more recently found to be effective against most mites and some lice too.