Which product is an ergotamine combination used for migraine?

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The concept here is that ergotamine is often given as a combination product with caffeine to treat acute migraine. The ergotamine/caffeine combination enhances absorption and adds vasoconstrictive support, making it more effective than ergotamine alone. This specific combination product is historically known (Cafergot) and is used for acute migraine relief. The other options are not ergotamine combinations: one is ergotamine alone, another is dihydroergotamine (a different ergot derivative), and the last is a different drug class (sumatriptan, a triptan).