Drug Interactions between ibuprofen / oxycodone and naproxen / sumatriptan

GENERALLY AVOID: Concomitant use of more than one nonsteroidal anti-inflammatory drug (NSAID) at a time may increase the potential for serious gastrointestinal toxicity including inflammation, bleeding, ulceration, and perforation of the esophagus, stomach, or intestines. These events can occur at any time during NSAID use, with or without warning symptoms. The risk is dependent on both dosage and duration of therapy. Patients with a prior history of peptic ulcer disease and/or GI bleeding have a greater than 10-fold increased risk of developing a GI bleed during NSAID use compared to patients without a history. Additional risk factors include old age, alcohol use, smoking, and poor general health status.

MANAGEMENT: Concomitant use of more than one NSAID at a time should generally be avoided. Some authorities consider the concomitant use of more than one NSAID at a time to be contraindicated due to the absence of any evidence demonstrating synergistic benefits and the potential for additive adverse reactions (AU,UK). Patients treated with an NSAID should be advised to take it with food and to immediately report signs and symptoms of GI ulceration and bleeding such as severe abdominal pain, dizziness, lightheadedness, and the appearance of black, tarry stools. The selective use of prophylactic anti-ulcer therapy (e.g., antacids, misoprostol, proton pump inhibitors) may be considered in high risk patients.

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MONITOR: Opioids may potentiate the effects of serotonergic agents and increase the risk of serotonin syndrome. The interaction has primarily been reported with the phenylpiperidine opioids (e.g., meperidine, fentanyl) and tramadol, which are known to possess some serotonergic activity, although a few cases have involved other opioids such as oxycodone, methadone, morphine, hydromorphone, codeine, and buprenorphine. Serotonin syndrome is a rare but serious and potentially fatal condition thought to result from hyperstimulation of brainstem 5-HT1A and 2A receptors. Symptoms of the serotonin syndrome may include mental status changes such as irritability, altered consciousness, confusion, hallucinations, and coma; autonomic dysfunction such as tachycardia, hyperthermia, diaphoresis, shivering, blood pressure lability, and mydriasis; neuromuscular abnormalities such as hyperreflexia, myoclonus, tremor, rigidity, and ataxia; and gastrointestinal symptoms such as abdominal cramping, nausea, vomiting, and diarrhea. Since many serotonergic agents can also cause central nervous system depression, concomitant use with opioids may result in increased sedation and impairment of judgment, thinking, and psychomotor skills.

MANAGEMENT: Caution is advised when opioids are used concomitantly with serotonergic agents such as selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), monoamine oxidase inhibitors (MAOIs), tricyclic antidepressants (TCAs), other antidepressants/psychotropic agents (e.g., amoxapine, buspirone, lithium, maprotiline, mirtazepine, nefazodone, trazodone, vilazodone), 5-HT1 receptor agonists (triptans), 5-HT3 receptor antagonists, cyclobenzaprine, dextromethorphan, 5-hydroxytryptophan, and St. John's wort. Patients should be monitored for symptoms of the serotonin syndrome during treatment. Particular caution is advised when increasing the dosages of these agents. If serotonin syndrome develops or is suspected during the course of therapy, all serotonergic agents should be discontinued immediately and supportive care rendered as necessary. Moderately ill patients may also benefit from the administration of a serotonin antagonist (e.g., cyproheptadine, chlorpromazine). Severe cases should be managed under consultation with a toxicologist and may require sedation, neuromuscular paralysis, intubation, and mechanical ventilation in addition to the other measures. Patients should also be advised of potentially additive central nervous system effects from these agents and to avoid hazardous activities requiring complete mental alertness and motor coordination until they know how these agents affect them.

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