ADVIL MULTI-SYMPTOM COLD & FLU
Clinical safety rating: caution
Comprehensive clinical and safety monograph for ADVIL MULTI-SYMPTOM COLD & FLU (ADVIL MULTI-SYMPTOM COLD & FLU).
Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that inhibits cyclooxygenase (COX-1 and COX-2) enzymes, reducing prostaglandin synthesis. Phenylephrine is a sympathomimetic amine that acts as a decongestant via alpha-1 adrenergic receptor agonism. Dextromethorphan is an antitussive that acts as an NMDA receptor antagonist and sigma-1 receptor agonist. Chlorpheniramine is a first-generation antihistamine that competitively antagonizes histamine H1 receptors.
| Metabolism | Ibuprofen is primarily metabolized by CYP2C9. Phenylephrine undergoes oxidative metabolism by monoamine oxidase (MAO) and sulfation. Dextromethorphan is metabolized by CYP2D6 to dextrorphan. Chlorpheniramine is extensively metabolized via N-demethylation and oxidative pathways. |
| Excretion | Renal (90% as sulfate and glucuronide conjugates, <5% unchanged), biliary/fecal (minimal). |
| Half-life | 2–4 hours (pseudoephedrine: 5–8 hours; clinical context: q4-6h dosing). |
| Protein binding | Ibuprofen: >99% (primarily albumin); pseudoephedrine: negligible binding. |
| Volume of Distribution | Ibuprofen: 0.15–0.3 L/kg; pseudoephedrine: 2.5–3.3 L/kg. |
| Bioavailability | Oral: ibuprofen ~80% (suspension higher), pseudoephedrine ~100%. |
| Onset of Action | Oral: 15–30 minutes (ibuprofen), 30–60 minutes (pseudoephedrine). |
| Duration of Action | 4–6 hours (ibuprofen), 4–6 hours (pseudoephedrine). |
Each tablet contains ibuprofen 200 mg, phenylephrine HCl 10 mg, and chlorpheniramine maleate 2 mg. Adults and children 12 years and over: 1 tablet every 4 hours while symptoms persist. Do not exceed 6 tablets in 24 hours.
| Dosage form | TABLET |
| Renal impairment | Contraindicated in severe renal impairment (CrCl <30 mL/min). For mild to moderate impairment (CrCl 30-89 mL/min), avoid use or use with caution; consider alternate analgesic if needed. No specific dose adjustment established, but increased risk of NSAID-related renal toxicity. |
| Liver impairment | Contraindicated in severe hepatic impairment (Child-Pugh Class C). For mild to moderate (Child-Pugh A or B), use with caution; no established dose adjustment due to limited data. Ibuprofen may increase risk of hepatotoxicity; monitor liver function. |
| Pediatric use | Not for use in children under 12 years of age. For pediatric patients 12 years and older, same as adult dosing: 1 tablet every 4 hours, max 6 tablets/day. |
| Geriatric use | Elderly patients (≥65 years) are at increased risk for NSAID-related adverse effects (GI bleeding, renal impairment, cardiovascular events). Use lowest effective dose for shortest duration. Consider avoiding this combination product in elderly; use individual components if necessary. Caution with anticholinergic effects of chlorpheniramine (confusion, urinary retention). |
| 1st trimester | Consult provider |
| 2nd trimester | Consult provider |
| 3rd trimester | Consult provider |
Clinical note
Comprehensive clinical and safety monograph for ADVIL MULTI-SYMPTOM COLD & FLU (ADVIL MULTI-SYMPTOM COLD & FLU).
| Breastfeeding | NSAIDs (ibuprofen): Low transfer into breast milk (M/P ratio ~0.01); infant dose <1% maternal weight-adjusted dose; considered compatible. Phenylephrine: Excreted in milk; may reduce milk production (potent vasoconstrictor) and cause irritability in infant. Chlorpheniramine: Excreted in milk; may cause drowsiness or paradoxical excitation. Dextromethorphan: Limited data; breast milk levels are minimal. Overall, use with caution; avoid decongestant in nursing mothers with hypertension or low milk supply. |
| Teratogenic Risk | First trimester: NSAIDs are associated with increased risk of miscarriage and congenital heart defects (odds ratio 1.86). Late third trimester: NSAIDs cause premature closure of ductus arteriosus, oligohydramnios, and necrotizing enterocolitis; avoid after 30 weeks gestation. Decongestant (phenylephrine): First trimester use may be associated with gastroschisis (relative risk 1.4) and hemifacial microsomia. Antihistamine (chlorpheniramine): Generally considered low risk, but animal studies show cleft palate at high doses. Antitussive (dextromethorphan): Limited human data; avoid in first trimester due to possible neural tube defects. |
■ FDA Black Box Warning
NSAIDs cause an increased risk of serious cardiovascular thrombotic events, including myocardial infarction and stroke, which can be fatal. This risk may occur early in treatment and may increase with duration of use. NSAIDs are contraindicated in the setting of coronary artery bypass graft (CABG) surgery.
| Serious Effects |
Hypersensitivity to any component; history of asthma, urticaria, or allergic-type reactions after taking aspirin or other NSAIDs; use of or within 14 days of MAO inhibitors; third trimester of pregnancy; active or history of recurrent peptic ulcer disease; history of GI bleeding; severe hypertension or coronary artery disease; concurrent administration of other sympathomimetics; patients with narrow-angle glaucoma; prostatic hypertrophy; urinary retention; breastfeeding.
| Precautions | Cardiovascular risk, gastrointestinal bleeding, hypertension, renal toxicity, hepatic impairment, anaphylactoid reactions, asthma exacerbation, pregnancy category C (first and second trimesters) and D (third trimester), and risk of Reye's syndrome with viral illness (due to ibuprofen). Phenylephrine: severe hypertension, arrhythmias. Dextromethorphan: serotonin syndrome especially with MAOIs. Chlorpheniramine: anticholinergic effects, drowsiness. |
Loading safety data…
| Fetal Monitoring | Monitor maternal blood pressure (decongestant and NSAIDs can elevate BP). Assess for signs of premature ductus arteriosus closure (fetal echocardiography if NSAID use >48 hours after 20 weeks). Monitor amniotic fluid index (oligohydramnios risk with NSAIDs). In third trimester, monitor for uterine bleeding complications. Observe neonate for respiratory depression if used near delivery. |
| Fertility Effects | NSAIDs (ibuprofen): Reversible inhibition of prostaglandin synthesis may delay or prevent ovulation (luteinized unruptured follicle syndrome). Effect resolves upon discontinuation. No impact on spermatogenesis. Antihistamines/decongestants: No known direct effect on fertility. |
| Food/Dietary | Avoid alcohol; may increase risk of gastrointestinal bleeding. No specific food restrictions, but taking with food reduces gastric irritation. |
| Clinical Pearls | ADVIL MULTI-SYMPTOM COLD & FLU contains ibuprofen (NSAID), pseudoephedrine (decongestant), and chlorpheniramine (antihistamine). Avoid in patients with uncontrolled hypertension, coronary artery disease, or MAOI use within 14 days. Combine with caution with other NSAIDs or anticoagulants due to increased bleeding risk. Monitor renal function in elderly or dehydrated patients. |
| Patient Advice | Do not take with other ibuprofen or NSAID products. · Avoid alcohol to reduce risk of stomach bleeding. · Do not use for more than 7 days for cold symptoms or 3 days for fever. · Take with food or milk to minimize GI upset. · May cause drowsiness; avoid driving or operating machinery if affected. |