Monograph Details
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Pain & Pyrexia
> Migraine and headache
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PHRENILIN |
| Manufacturer |
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Valeant Pharmaceuticals, Inc |
| Legal Classification |
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Rx
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| Pharmacological Class |
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Barbiturate + analgesic. |
| Generic Name |
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Butalbital 50mg, acetaminophen 325mg; tabs. |
| Indications |
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Tension (or muscle contraction) headache. |
| Children |
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Not recommended. |
| Adults |
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1–2 tabs every 4 hours; max 6 tabs daily. |
| Contraindications |
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Porphyria. |
| Precautions |
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Extended use: not recommended. Severe renal or hepatic impairment. Acute abdominal conditions. Elderly. Debilitated. Pregnancy (Cat.C). Nursing mothers: not recommended. |
| Interactions |
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Potentiated by alcohol, other CNS depressants, MAOIs. May cause false (+) urine test for 5-hydroxyindoleacetic acid. |
| Adverse Reactions |
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Drowsiness, dizziness, paradoxical excitement, rash; overdosage: respiratory depression, hepatotoxicity. |
| How Supplied |
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Tabs—100, 500 |
| Additional Resources |
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• Related Prescribing Note |
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