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.
Concurrent use of sumatriptan and buspirone can increase the risk of serotonin syndrome. See 'Serotonin syndrome' and 'Monoamine-oxidase inhibitor' under Antidepressant drugs for more information and for specific advice on avoiding monoamine-oxidase inhibitors during and after administration of other serotonergic drugs.