Trigeminal autonomic cephalgia

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Trigeminal autonomic cephalgia
Classification and external resources
Specialtyheadache, trigeminal nerve disease[*], primary headache disorder[*]

Trigeminal autonomic cephalalgia (TAC) is the name for a type of primary headache that occurs with pain on one side of the head in the trigeminal nerve area and symptoms in autonomic systems on the same side, such as eye watering and redness or drooping eyelids.[1] TACs include

TACs can be differentiated by the length and frequency of recurrence of the headaches.[2]

Treatment for TACs varies depending on the exact type, but can include medication such as Indomethacin (in the case of chronic paroxysmal hemicrania) or acute and prophylactic therapy (in the case of cluster headache).[3]


  1. ^ "Kaplan Headache Center". Archived from the original on 10 Jun 2013.
  2. ^ Goadsby, P J (2005). "Trigeminal autonomic cephalalgias: Fancy term or constructive change to the IHS classification?". Journal of Neurology, Neurosurgery & Psychiatry. 76 (3): 301–5. doi:10.1136/jnnp.2004.036012. PMC 1739543. PMID 15716514.
  3. ^ Graff-Radford, Steven. "Trigeminal Autonomic Cephalalgias" (slides). Retrieved 12 January 2017.