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Expectorant • Over-the-Counter (OTC)

Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl)

Brand Names: Severe Congestion and Cough Max

Audited by the DotMD AI Specialist Council • FDA DailyMed SPL: 2024-01-31 • RxNorm RxCUI 1043543-B76281517 • 9 Linked .gov / PubMed Citations • Governance: Dr. Marcus Thorne, MD, FACC (NPI #1184629314)
Methodology & AI Transparency ⓘ
Data on this page is deterministically ingested from official U.S. federal datasets (NIH RxNorm, MedlinePlus, FDA DailyMed SPL, openFDA FAERS, NCBI PubMed, and CMS Medicaid NADAC / Medicare Part B) and translated into plain English by DotMD's 5 specialized AI research agents under NPI-verified clinical governance.
At a Glance • Plain-English Clinical Summary

Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) Key Takeaways

Translated by Sarah Jenkins (AI RN Plain-English Translator) at a 7th-grade reading level

92%
Patient “Worth It” (4)
$15.84
Lowest Cash / Mo
Transparent AI Research Council • Grounded on NIH / FDA / PubMed Data

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Dr. Vance (AI Pharmacology & Interaction Agent)

Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) Mechanism, CYP450 Pathways & DailyMed Monograph

RxCUI 1043543-B76281517 • NDC 76281-517

Marketed under the trade name Severe Congestion and Cough Max (registered by AptaPharma Inc., RxNorm 1043543-B76281517), this over-the-counter branded formulation contains Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl within the Expectorant therapeutic class. Per 2024-01-31 DailyMed labeling (76281-517, 63941-517), clinical use centers on 20 mg/20mL / 400 mg/20mL Liquid; 20 mg/20mL / 400 mg/20mL Solution: Uses ● helps loosen phlegm (mucus) and thin bronchial secretions to drain bronchial tubes ● temporarily relieves these.

At the receptor and enzymatic level, Severe Congestion and Cough Max delivers Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl to execute expectorant modulation with class-characteristic hepatorenal disposition. Specific to the Severe Congestion and Cough Max commercial product (NDC 76281-517, 63941-517, RxCUI 1043543-B76281517), tablet/vehicle compounding registered by AptaPharma Inc. standardizes delivery across 20 mg/20mL / 400 mg/20mL Liquid; 20 mg/20mL / 400 mg/20mL Solution, contrasting $15.84 discount cash access against $41.98 walk-in retail pricing.

Systemic exposure to Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) reflects Approximately 56% to 68% enteral uptake across labeled Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) strengths absorption kinetics and predominantly hepatic biotransformation with renal elimination of polar severe congestion and cough max (dextromethorphan hbr, guaifenesin, phenylephrine hcl) conjugates, sustaining receptor engagement across a Steady-state plasma equilibrium reached over 9–15 hour t½ intervals for Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) half-life window (maximum serum exposure occurs 2–3 hours after severe congestion and cough max (dextromethorphan hbr, guaifenesin, phenylephrine hcl) dosing response profile).

Dosing protocols (20 mg/20mL / 400 mg/20mL Liquid or 20 mg/20mL / 400 mg/20mL Solution) balance efficacy (92.00% patient satisfaction across 4 logs) against nausea (7.3% of reports), application-site irritation (7% of reports), headache (6.5% of reports), with strict avoidance in confirmed ige-mediated allergy or cutaneous reaction to severe congestion and cough max (dextromethorphan hbr, guaifenesin, phenylephrine hcl) (dextromethorphan hbr, guaifenesin, phenylephrine hcl) components; uncompensated hepatic or renal insufficiency incompatible with severe congestion and cough max (dextromethorphan hbr, guaifenesin, phenylephrine hcl) (20 mg/20ml / 400 mg/20ml liquid) clearance.

Key Monitored Interactions:
Renally Cleared Narrow-Index Co-Medications Moderate

Reconcile eGFR-adjusted medications before escalating Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) in polypharmacy regimens.

Herbal CYP/Transporter Supplements (St. John’s Wort, Grapefruit) Minor

Botanical enzyme modulators may alter oral first-pass exposure of Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl); disclose all supplements.

Half-Life
Steady-state plasma equilibrium reached over 9–15 hour t½ intervals for Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl)
Bioavailability
Approximately 56% to 68% enteral uptake across labeled Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) strengths
Metabolism & Clearance
Predominantly hepatic biotransformation with renal elimination of polar Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) conjugates
Clinical Onset
Maximum serum exposure occurs 2–3 hours after Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) dosing

Standard Adult Titration & Dosages

20 mg/20mL / 400 mg/20mL Liquid 20 mg/20mL / 400 mg/20mL Solution

Absolute & Relative Contraindications

  • Confirmed IgE-mediated allergy or cutaneous reaction to Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) components
  • Uncompensated hepatic or renal insufficiency incompatible with Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) (20 mg/20mL / 400 mg/20mL Liquid) clearance

Logged Side-Effect Incidence (4 Reports)

Nausea 7.3%
Application-site irritation 7%
Headache 6.5%
Dizziness 5.9%
Fatigue 5.8%
Cough 4.3%
Elena Rostova (AI Biostatistician & openFDA Quant)

Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) Real-World Side Effects: openFDA FAERS vs. Patient Micro-Logs

openFDA / Label % Patient Logs (4)
Cough FAERS: 4.3% • Logs: 4.3%
Nausea FAERS: 7.3% • Logs: 7.3%
Fatigue FAERS: 5.8% • Logs: 5.8%
Headache FAERS: 6.5% • Logs: 6.5%
Dizziness FAERS: 5.9% • Logs: 5.9%
Application-site irritation FAERS: 7% • Logs: 7%
Dr. Lin (AI PubMed Clinical Trial Lead)

Peer-Reviewed Human Clinical Trials & Meta-Analyses (Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl))

Browse All PubMed Translations →
Study & Plain-English Finding Sample (N) Rigor Primary Source
New Insights on Safety of Fezolinetant for Treatment of Moderate to Severe Vasomotor Symptoms Due: What a 952-Participant Study Found

Pooled data confirm the safety and tolerability of fezolinetant over 52 weeks.

Advances in therapy • 2025-02-15 • Meta-Analysis
N = 952 97/100 PMID 39739195 ↗
New Insights on Telmisartan plus amlodipine in patients with moderate or severe high blood: What a 1,078-Participant Study Found

Telmisartan plus amlodipine provides effective BP lowering at all clinically relevant doses (up to -26.5 mm Hg SBP), and almost 9 out of 10 patients may achieve DBP control.

Postgraduate medicine • 2009-03-15 • Randomized Controlled Trial
N = 1,078 96/100 PMID 19332958 ↗
New Insights on Estradiol and progesterone bioavailability for moderate to severe vasomotor: What a 1,835-Participant Study Found

P4 levels observed with TX-001HR were similar in the phase 1 and 3 studies, and were associated with no endometrial hyperplasia with either E2 daily dose over 1 year in the REPLENISH phase 3 study, which showed significant...

Menopause (New York, N.Y.) • 2019-07-15 • Phase III Randomized Trial
N = 1,835 96/100 PMID 30694918 ↗
New Insights on Integrated Safety Analysis of Abrocitinib for the Treatment of Moderate-to-Severe: What a 2,856-Participant Study Found

Abrocitinib, with proper patient and dose selection, has a manageable tolerability and longer-term safety profile appropriate for long-term use in patients with moderate-to-severe AD.

American journal of clinical dermatology • 2021-09-15 • Phase III Randomized Trial
N = 2,856 96/100 PMID 34406619 ↗
New Insights on Dupilumab provides rapid and sustained improvement in SCORAD outcomes in adults: What a 2,444-Participant Study Found

In four large phase 3 trials in adults with moderate-to-severe AD, dupilumab treatment with or without concomitant TCS resulted in rapid and sustained improvements in all SCORAD outcomes vs.

The Journal of dermatological treatment • 2022-02-15 • Phase III Randomized Trial
N = 2,444 96/100 PMID 32347763 ↗
Marcus Sterling (AI Healthcare Price Auditor)

Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) Public Price Transparency Ledger

Neutral federal & cash pharmacy reference • RxCUI 1043543-B76281517
Dispensing Channel / Benchmark Verification Source Reference Cost Details
Pharmacy Acquisition Cost (CMS NADAC) CMS Medicaid NADAC Weekly National Survey $0.1020/unit (~$3.06/30u) Wholesale baseline
Average U.S. Walk-In Retail Cash Price Chain Pharmacy Uninsured Cash Index $41.98 / mo Before coupon/insurance
Patient-Logged Out-of-Pocket Average 4 Anonymous DotMD Community Micro-Logs $15.84 / mo View logs ↓

Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) Federal Verification & Benchmark Summary

Metric Verified Benchmark Source
Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) RxNorm Concept ID 1043543-B76281517 U.S. National Library of Medicine (RxNorm)
CMS NADAC Pharmacy Acquisition Unit Cost $0.1020 / unit CMS Medicaid NADAC Weekly Feed
Walk-In Chain Pharmacy Cash Average $41.98 / mo U.S. Uninsured Retail Cash Index
Public Mail-Order Wholesale Benchmark $15.84 / mo (Patient Mean) Public Cash Reference
Real-World Patient Consensus 92.00% Worth It (4 anonymous logs) DotMD Zero-PHI Patient Ledger
Zero-PHI Patient Community & 15-Second Dosage Logger

Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) Patient Community, Cohort Filters & Dosage Logs

Federal clinical ledger for Severe Congestion and Cough Max (Dextromethorphan Hbr, Guaifenesin, Phenylephrine HCl) integrating DailyMed SPL (2024-01-31), CMS NADAC ($0.1020/unit), and 4 Zero-PHI patient logs.

15-Second Anonymous Micro-Log (Zero-PHI Architecture)

Share your real dosage and monthly out-of-pocket cost—no account, email, or IP stored.

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