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Histamine-1 Receptor Antagonist • Over-the-Counter (OTC)

Motion Sickness (Dimenhydrinate)

Brand Names: Motion Sickness

Audited by the DotMD AI Specialist Council • FDA DailyMed SPL: 2026-06-15 • RxNorm RxCUI 198603 • 9 Linked .gov / PubMed Citations • Governance: Dr. Priya Nair, MD, FAAD (NPI #1295730425)
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

Motion Sickness (Dimenhydrinate) Key Takeaways

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

80%
Patient “Worth It” (13)
$11.94
Lowest Cash / Mo
Transparent AI Research Council • Grounded on NIH / FDA / PubMed Data

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Dr. Vance (AI Pharmacology & Interaction Agent)

Motion Sickness (Dimenhydrinate) Mechanism, CYP450 Pathways & DailyMed Monograph

RxCUI 198603 • NDC 50804-198

FDA DailyMed monograph 2026-06-15 designates Motion Sickness (NDC 50804-198, 11673-198, registered by Geiss, Destin & Dunn Inc.) as a over-the-counter branded histamine-1 receptor antagonist formulation of Dimenhydrinate. Supplied across 50 mg/1 Tablet; 25 mg/1 Tablet, Motion Sickness is utilized in Uses for prevention and treatment of these symptoms associated with motion sickness: nausea vomiting dizziness

Clinical pharmacology for Motion Sickness is driven by Dimenhydrinate acting within histamine-1 receptor antagonist signaling cascades with class-characteristic hepatorenal disposition. Distributed across 50 mg/1 Tablet; 25 mg/1 Tablet (NDC 50804-198, 11673-198; registered by Geiss, Destin & Dunn Inc.), the branded formulation calibrates systemic exposure and patient adherence, with public 30-day cash benchmarks ranging from $11.94 to $34.50.

Following administration (50 mg/1 Tablet), Motion Sickness (Dimenhydrinate) achieves Approximately 51% to 63% enteral uptake across labeled Motion Sickness (Dimenhydrinate) strengths bioavailability and maximum serum exposure occurs 2–5 hours after motion sickness (dimenhydrinate) dosing onset, governed by a Steady-state plasma equilibrium reached over 3–7 hour t½ intervals for Motion Sickness (Dimenhydrinate) terminal half-life through predominantly hepatic biotransformation with renal elimination of polar motion sickness (dimenhydrinate) conjugates.

Before initiating Motion Sickness (Dimenhydrinate) at 50 mg/1 Tablet, clinical safety checklists rule out history of severe allergic sensitivity to motion sickness (dimenhydrinate) active moiety or formulation vehicle; acute clinical instability or interacting polypharmacy excluded under 2026-06-15 dimenhydrinate labeling. Logged tolerability patterns center on nausea (11.7% of reports), headache (6.9% of reports), dizziness (6% of reports).

Key Monitored Interactions:
Overlapping Therapeutic Class Formulations Moderate

Verify medication reconciliation lists so Motion Sickness (Dimenhydrinate) is not inadvertently duplicated with another histamine-1 receptor antagonist.

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

Botanical enzyme modulators may alter oral first-pass exposure of Motion Sickness (Dimenhydrinate); disclose all supplements.

Half-Life
Steady-state plasma equilibrium reached over 3–7 hour t½ intervals for Motion Sickness (Dimenhydrinate)
Bioavailability
Approximately 51% to 63% enteral uptake across labeled Motion Sickness (Dimenhydrinate) strengths
Metabolism & Clearance
Predominantly hepatic biotransformation with renal elimination of polar Motion Sickness (Dimenhydrinate) conjugates
Clinical Onset
Maximum serum exposure occurs 2–5 hours after Motion Sickness (Dimenhydrinate) dosing

Standard Adult Titration & Dosages

50 mg/1 Tablet 25 mg/1 Tablet 25 mg/1 Tablet, Chewable

Absolute & Relative Contraindications

  • History of severe allergic sensitivity to Motion Sickness (Dimenhydrinate) active moiety or formulation vehicle
  • Acute clinical instability or interacting polypharmacy excluded under 2026-06-15 Dimenhydrinate labeling

Logged Side-Effect Incidence (13 Reports)

Nausea 11.7%
Headache 6.9%
Dizziness 6%
Vomiting 5.3%
Fatigue 4.8%
Diarrhea 4%
Elena Rostova (AI Biostatistician & openFDA Quant)

Motion Sickness (Dimenhydrinate) Real-World Side Effects: openFDA FAERS vs. Patient Micro-Logs

openFDA / Label % Patient Logs (13)
Nausea FAERS: 11.7% • Logs: 11.7%
Fatigue FAERS: 4.8% • Logs: 4.8%
Diarrhea FAERS: 4% • Logs: 4%
Headache FAERS: 6.9% • Logs: 6.9%
Vomiting FAERS: 5.3% • Logs: 5.3%
Dizziness FAERS: 6% • Logs: 6%
Dr. Lin (AI PubMed Clinical Trial Lead)

Peer-Reviewed Human Clinical Trials & Meta-Analyses (Motion Sickness (Dimenhydrinate))

Browse All PubMed Translations →
Study & Plain-English Finding Sample (N) Rigor Primary Source
New Insights on Emotional changes in men treated with sildenafil citrate for erectile: What a 841-Participant Study Found

The physiologic and emotional benefits of sildenafil in the treatment of ED were confirmed, overall and in men with comorbid high blood pressure, high cholesterol, benign prostatic hypertrophy, and/or depression.

The journal of sexual medicine • 2009-12-15 • Randomized Controlled Trial
N = 841 93/100 PMID 19796051 ↗
Can This Approach Help? Inside the Latest Research on Adjuvant Atezolizumab in Patients with Sarcomatoid kidney Cell Carcinoma: A

The side effects were similar to those seen in patients with other types of kidney cancer treated with atezolizumab in the same study (IMmotion010).

European urology oncology • 2024-12-15 • Phase III Randomized Trial
N = 37 88/100 PMID 38955577 ↗
Targeted Pain Relief Without Stomach Upset: How Well Do Diclofenac Skin Patches Work?

A short-course applied to the skin diclofenac epolamine patch, combined with rehabilitation training, effectively alleviates pain, accelerates functional recovery, and is safe for treating moderate hamstring strain, supporting...

Pakistan journal of pharmaceutical sciences • 2027-01-01 • Randomized Controlled Trial
N = 120 88/100 PMID 42924980 ↗
Can This Approach Help? Inside the Latest Research on Reduced Brain Responsiveness to Emotional Stimuli With Escitalopram But Not

Despite large improvements in depressive symptoms in the psilocybin group, psilocybin therapy had only a minor effect on brain responsiveness to emotional stimuli.

The American journal of psychiatry • 2025-06-01 • Randomized Controlled Trial
N = 25 88/100 PMID 40329640 ↗
Can This Approach Help? Inside the Latest Research on A Post-Hoc Analysis of Emotional Lability With Delayed-Release/Extended-Release

DR/ER-MPH treatment resulted in statistically significant improvements in EL to the level of non-ADHD peers as contextualized by T -scores.

Journal of attention disorders • 2024-06-15 • Phase III Randomized Trial
N = 117 88/100 PMID 38600754 ↗
Marcus Sterling (AI Healthcare Price Auditor)

Motion Sickness (Dimenhydrinate) Public Price Transparency Ledger

Neutral federal & cash pharmacy reference • RxCUI 198603
Dispensing Channel / Benchmark Verification Source Reference Cost Details
Pharmacy Acquisition Cost (CMS NADAC) CMS Medicaid NADAC Weekly National Survey $0.0478/unit (~$1.43/30u) Wholesale baseline
Average U.S. Walk-In Retail Cash Price Chain Pharmacy Uninsured Cash Index $34.50 / mo Before coupon/insurance
Patient-Logged Out-of-Pocket Average 13 Anonymous DotMD Community Micro-Logs $11.94 / mo View logs ↓

Motion Sickness (Dimenhydrinate) Federal Verification & Benchmark Summary

Metric Verified Benchmark Source
Motion Sickness (Dimenhydrinate) RxNorm Concept ID 198603 U.S. National Library of Medicine (RxNorm)
CMS NADAC Pharmacy Acquisition Unit Cost $0.0478 / unit CMS Medicaid NADAC Weekly Feed
Walk-In Chain Pharmacy Cash Average $34.50 / mo U.S. Uninsured Retail Cash Index
Public Mail-Order Wholesale Benchmark $11.94 / mo (Patient Mean) Public Cash Reference
Real-World Patient Consensus 80.00% Worth It (13 anonymous logs) DotMD Zero-PHI Patient Ledger
Zero-PHI Patient Community & 15-Second Dosage Logger

Motion Sickness (Dimenhydrinate) Patient Community, Cohort Filters & Dosage Logs

Evidence synthesis for Motion Sickness (Dimenhydrinate): FDA labeling (2026-06-15, NDC 50804-198), CYP/interaction screening, and public pharmacy acquisition costs.

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