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Acetaminophen, Isometheptene, and Dichloralphenazone
Pronunciation
U.S. Brand Names
Generic Available
Pharmacological Index
Use
Pregnancy Risk Factor
Contraindications
Adverse Reactions
Usual Dosage
Mental Health: Effects on Mental Status
Mental Health: Effects on Psychiatric Treatment
Dental Health: Local Anesthetic/Vasoconstrictor Precautions
Dental Health: Effects on Dental Treatment
Dosage Forms
References

Pronunciation
(a seet a MIN oh fen, eye soe me THEP teen, & dye KLOR al FEN a zone)

U.S. Brand Names
Isocom®; Isopap®; Midchlor®; Midrin®; Migratine®

Generic Available

Yes


Pharmacological Index

Analgesic, Miscellaneous


Use

Relief of migraine and tension headache


Pregnancy Risk Factor

B


Contraindications

Glaucoma; severe renal disease; hypertension; organic heart disease; hepatic disease; MAO inhibitor therapy


Adverse Reactions

Central nervous system: Transient dizziness

Dermatological: Rash


Usual Dosage

Adults: Oral: 2 capsules at first sign of headache, followed by 1 capsule every 60 minutes until relieved, up to 5 capsules in a 12-hour period


Mental Health: Effects on Mental Status

May cause drowsiness or dizziness


Mental Health: Effects on Psychiatric Treatment

Contraindicated with MAOI


Dental Health: Local Anesthetic/Vasoconstrictor Precautions

No information available to require special precautions


Dental Health: Effects on Dental Treatment

No effects or complications reported


Dosage Forms

Capsule: Acetaminophen 325 mg, isometheptene mucate 65 mg, dichloralphenazone 100 mg


References

Barker JD Jr, de Carle DJ, and Anuras S, "Chronic Excessive Acetaminophen Use in Liver Damage," Ann Intern Med, 1977, 87(3):299-301.

Dionne RA, Campbell RA, Cooper SA, et al, "Suppression of Postoperative Pain by Preoperative Administration of Ibuprofen in Comparison to Placebo, Acetaminophen, and Acetaminophen Plus Codeine," J Clin Pharmacol, 1983, 23(1):37-43.

Licht H, Seeff LB, and Zimmerman HJ, "Apparent Potentiation of Acetaminophen Hepatotoxicity by Alcohol," Ann Intern Med, 1980, 92(4):511.


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