Oral isotretinoin is the best treatment for patients with moderate acne in whom antibiotics are unsuccessful and for those with severe inflammatory acne. Dosage of isotretinoin is usually 1 mg/kg once/day for 16 to 20 wk, but the dosage may be increased to 2 mg/kg once/day.
Lots of different predators will prey upon other predators: Golden eagles are well known predators of smaller hawks. Collared lizards will eat other lizards. Crocodilians will feed on other predators, such as monitor lizards, snakes and even lions that come to the water to drink. Many snakes will eat other snakes. Some frogs, like the horned frogs of South America and the African bullfrog, readily feed on other frogs.
A predator is an animal that eats other animals â or people or companies who act like they do. Lions are predators, but so are pickpockets and some giant corporations. The word predator started out referring to insects that ate other insects, but has grown to include any animal that eats another animal. We humans like to think of ourselves as the top of the food chain, but scary movies love to disagree, like in the 1987 movie Predator, where creepy aliens try to kill and eat us. Predators don't have to kill and eat you, though; they can also just take your stuff.