Classes
DEA Class; Rx
Common Brand Names; Norgesic, Norgesic Forte, Orphengesic, Orphengesic Forte
Analgesics, Other Combos
Description
Oral combination of salicylate analgesic (aspirin), CNS stimulant (caffeine), and centrally acting muscle relaxant (orphenadrine)
Used for acute pain of musculoskeletal disorders
Orphenadrine has anticholinergic properties and is contraindicated in glaucoma and certain GI and urinary diseases
Indications
Indicated for symptomatic relief of mild-to-moderate pain caused by acute musculoskeletal disorders as an adjunct to rest, physical therapy, and other measures
Contraindications
Glaucoma
Pyloric or duodenal obstruction
Achalasia
Prostatic hypertrophy or bladder neck obstructions
Myasthenia gravis
Hypersensitivity to orphenadrine, aspirin, or caffeine
Adverse Effects
Tachycardia
Palpitation
Urinary hesitancy or retention
Dry mouth
Blurred vision
Dilated pupils
Increased intraocular tension
Weakness
Nausea
Vomiting
Headache
Dizziness
Constipation
Drowsiness
Urticaria (rare)
Other dermatosis (rare)
Confusion in elderly individuals (infrequent)
Mild central excitation and occasional hallucinations
Warnings
Not recommended for use in patients with chicken pox, influenza, or flu symptoms; Reye syndrome may develop in individuals who have chicken pox, influenza, or flu symptoms; studies suggest association between Reye syndrome and use of medicines containing salicylate or aspirin
May impair patient’s ability to engage in potentially hazardous activities (eg, operating machinery, driving a motor vehicle)
Pregnancy and Lactation
Pregnancy; Use of NSAIDs can cause premature closure of fetal ductus arteriosus and fetal renal dysfunction leading to oligohydramnios and, in some cases, neonatal renal impairment
Lactation; Safety during lactation has not been established
Maximum Dosage
Adults
3080 mg/day PO aspirin, 240 mg/day PO caffeine, and 200 mg/day PO orphenadrine.
Geriatric
3080 mg/day PO aspirin, 240 mg/day PO caffeine, and 200 mg/day PO orphenadrine.
Adolescents
Safety and efficacy have not been established.
Children
Safety and efficacy have not been established.
How supplied
orphenadrine/aspirin/caffeine
Tablet
50mg/770mg/60mg