Hi Dal,
There are other specific-oriented drugs you can take for migraine instead of Darvocet. (Actually, a side effect of Darvocet is "headache").
Zomig works extremely well on even the worst migraine attacks. It comes in 2.5 mg or 5 mg tabs. (5mg work best for me). Imitrix is also a well-known and often prescribed medication for migraine. I've been under the care of a neurologist for years, and I've never been given Darvocet for treatment of migraine. Something in the amytriptaline drug family targets the pulsing agonizing blood flow during a migraine attack, and usually works quite fast and remains working for several hours. Downside: $25.00 per/pill because they don't make generic.