cluster headaches
"After suffering with cluster headaches for two years I was prescribed sumatriptan 100mg tablets which were effective if taken on an empty stomach. They got to work in about 20-30min which saved a good hour or so of debilitating pain, so were great. When the next bout hit I asked about the injections as the tablets didn't always work/work quick enough. Doctor agreed and I got Imigran 6mg. Wow. Just wow. Aborts the headache within a couple of minutes of injection (which is simple and easy). They are a lifesaver and I would recommend anybody who suffers cluster headaches to ask your doctor about it. In the UK they're available on NHS; my doctor was hesitant at first as apparently they cost £25 per 2 injection pack. But they are worth it."