The major non-gas contributor to Earth's greenhouse effect, clouds, also absorb and emit infrared radiation and thus have an effect on radiative properties of the greenhouse gases.
What is Imitrex? Imitrex (sumatriptan) is a headache medicine that narrows blood vessels around the brain. Sumatriptan also reduces substances in the body that can trigger headache pain, nausea, sensitivity to light and sound, and other migraine symptoms. Imitrex is used to treat migraine headaches. Imitrex will only treat a headache that has already begun. It will not prevent headaches or reduce the number of attacks.
Acetaminophen, ibuprofen, intranasal sumatriptan, and intranasal zolmitriptan seem to be effective in children and adolescents, although data in these age groups are limited. Migraine headache is one of the most common, yet potentially debilitating disorders encountered in primary care.