Some of the migraine medications used to treat or prevent migraine headaches are also used for other conditions. Antidepressants, anticonvulsants, antihistamines, and narcotic pain relievers are all used in migraine therapy.
These insects either have hemimetabolous development, and undergo an incomplete or partial metamorphosis, or holometabolous development, which undergo a complete metamorphosis, including a pupal or resting stage between the larval and adult forms. In hemimetabolous insects, immature stages are called nymphs.
1) Incomplete Metamorphosis or Direct or Simple Metamorphosis: 1  The group of the insects undergoing this type of metamorphosis is also called Hemimetabola. Insects under this type complete their postembryonic development without assuming much striking morphological changes.