Paroxetine Hydrochloride
Brand Names: Paxil
Methodology & AI Transparency ⓘ
Paroxetine Hydrochloride Key Takeaways
Translated by Sarah Jenkins (AI RN Plain-English Translator) at a 7th-grade reading level
- 1 What it does: Paroxetine HCL CR is indicated in adults for the treatment of: Major depressive disorder (MDD) Panic disorder (PD) Social anxiety disorder (SAD) Premenstrual dysphoric disorder (PMDD) Paroxetine HCL CR is a selective serotonin reuptake inhibitor (SSRI) indicated in adults for the treatment of ( 1 ): Major Depressive Disorder (MDD) Panic Disorder (PD) Social Anxiety Disorder (SAD) Premenstrual Dysphoric Disorder (PMDD)
- 2 Real-world patient consensus: Real-world cohort score of 88% across 14 de-identified Paroxetine Hydrochloride entries.
- 3 Typical cash cost range: Dispensing cost comparison spans $5.66 mail/discount cash up to $34.50 uninsured retail (federal NADAC $0.4455).
- 4 Top reported side effects / signs: Leading openFDA/SPL adverse events for Paroxetine Hydrochloride: dizziness (8%), diarrhea (7.4%), constipation (8.2%).
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Paroxetine Hydrochloride Mechanism, CYP450 Pathways & DailyMed Monograph
Paroxetine HCL CR is indicated in adults for the treatment of: Major depressive disorder (MDD) Panic disorder (PD) Social anxiety disorder (SAD) Premenstrual dysphoric disorder (PMDD) Paroxetine HCL CR is a selective serotonin reuptake inhibitor (SSRI) indicated in adults for the treatment of ( 1 ): Major Depressive Disorder (MDD) Panic Disorder (PD) Social Anxiety Disorder (SAD) Premenstrual Dysphoric Disorder (PMDD)
12.1 Mechanism of Action The mechanism of action of paroxetine in the treatment of major depressive disorder (MDD), panic disorder (PD), social anxiety disorder (SAD), and premenstrual dysphoric disorder (PMDD) is unknown, but is presumed to be linked to potentiation of serotonergic activity in the central nervous system resulting from inhibition of neuronal reuptake of serotonin (5-HT).
Clinical clearance of Paroxetine Hydrochloride (Serotonin Reuptake Inhibitor) relies on cytochrome cyp2d6 biotransformation with dual hepatorenal elimination with a Elimination kinetics span 5 to 12 hours per Paroxetine Hydrochloride clinical pharmacology half-life; patients absorbing at Consistent 66%–78% gastrointestinal absorption profile for Paroxetine Hydrochloride bioavailability typically observe target onset around cmax attained 2–5 hours post-administration of paroxetine hydrochloride.
FDA clinical labeling for Paroxetine Hydrochloride restricts administration in history of severe allergic sensitivity to paroxetine hydrochloride active moiety or formulation vehicle; acute clinical instability or interacting polypharmacy excluded under 2026-09-16 paroxetine hydrochloride labeling across 40 mg/1 Tablet, Film Coated, 20 mg/1 Tablet, Film Coated, 12.5 mg/1 Tablet, Film Coated, Extended Release, 37.5 mg/1 Tablet, Film Coated, Extended Release, 10 mg/5mL Suspension, with self-reported patient tracking dominated by constipation (8.2% of reports), dizziness (8% of reports), diarrhea (7.4% of reports).
Prothrombin time and INR stability may fluctuate when Paroxetine Hydrochloride is added to chronic warfarin regimens.
Systemic bioavailability and half-life of Paroxetine Hydrochloride respond to strong CYP2D6 enzymatic inhibition or induction.
Standard Adult Titration & Dosages
Absolute & Relative Contraindications
- History of severe allergic sensitivity to Paroxetine Hydrochloride active moiety or formulation vehicle
- Acute clinical instability or interacting polypharmacy excluded under 2026-09-16 Paroxetine Hydrochloride labeling
Logged Side-Effect Incidence (14 Reports)
Paroxetine Hydrochloride Real-World Side Effects: openFDA FAERS vs. Patient Micro-Logs
Peer-Reviewed Human Clinical Trials & Meta-Analyses (Paroxetine Hydrochloride)
| Study & Plain-English Finding | Sample (N) | Rigor | Primary Source |
|---|---|---|---|
| New Insights on Dose Escalation of Antidepressants in Unipolar: What a 272-Participant Study Found According to our meta-analytic findings, dose escalation after initial non-response to standard-dose pharmacotherapy cannot be regarded as general evidence-based treatment option in unipolar depression. Psychotherapy and psychosomatics • 2017-01-15 • Meta-Analysis | N = 272 | 97/100 | PMID 28903107 ↗ |
| New Insights on Acute efficacy of fluoxetine versus sertraline and paroxetine in depression: What a 284-Participant Study Found These data show no significant differences in acute treatment efficacy and tolerability across fluoxetine, sertraline, and paroxetine in depression patients. Journal of clinical psychopharmacology • 2002-04-15 • Randomized Controlled Trial | N = 284 | 93/100 | PMID 11910258 ↗ |
| Can This Approach Help? Inside the Latest Research on Anxiety on suicidal ideation: exploratory analysis of a paroxetine versus Patients with high baseline anxiety showed a trend toward faster reduction of suicidal ideation with paroxetine compared with bupropion treatment (standard P=0.047; bootstrap P=0.077). International clinical psychopharmacology • 2018-09-15 • Randomized Controlled Trial | N = 36 | 88/100 | PMID 29864037 ↗ |
| Can This Approach Help? Inside the Latest Research on Treatment-related improvement in neuropsychological functioning in suicidal Reduced suicidal ideation was best predicted by a combination of the independent improvements in both depression symptomatology and verbal memory. Psychiatry research • 2015-02-28 • Randomized Controlled Trial | Multi-cohort | 88/100 | PMID 25555415 ↗ |
| Can This Approach Help? Inside the Latest Research on Sexual function during bupropion or paroxetine treatment of According to the Sex FX scale, a significant difference in antidepressant-related sexual dysfunction was detected in men, but not women, during treatment with bupropion SR or paroxetine. Canadian journal of psychiatry. Revue canadienne de psychiatrie • 2006-03-15 • Randomized Controlled Trial | Multi-cohort | 88/100 | PMID 16629348 ↗ |
Paroxetine Hydrochloride Public Price Transparency Ledger
| Dispensing Channel / Benchmark | Verification Source | Reference Cost | Details |
|---|---|---|---|
| Pharmacy Acquisition Cost (CMS NADAC) | CMS Medicaid NADAC Weekly National Survey | $0.4455/unit (~$13.37/30u) | Wholesale baseline |
| Mark Cuban Cost Plus Drugs (Mail-Order Generic) | Public Wholesale Price List (NADAC + 15% + pharmacy fee) | $5.66 / mo | Formulary listing ↗ |
| 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 | 14 Anonymous DotMD Community Micro-Logs | $7.50 / mo | View logs ↓ |
| Hims & Hers Direct Cash Pharmacy (Licensed Telehealth Cash Program) | State-licensed clinician review • ~2d mail fulfillment | $49.00/mo program | Program details |
| Sesame Direct Cash-Pay Prescriber Network (Licensed Telehealth Cash Program) | State-licensed clinician review • ~1d mail fulfillment | $29.00 consult | Program details |
Paroxetine Hydrochloride Federal Verification & Benchmark Summary
| Metric | Verified Benchmark | Source |
|---|---|---|
| Paroxetine Hydrochloride RxNorm Concept ID | 1738803 | U.S. National Library of Medicine (RxNorm) |
| CMS NADAC Pharmacy Acquisition Unit Cost | $0.4455 / 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 | $5.66 / mo (Cost Plus Drugs) | Mark Cuban Cost Plus Public API |
| Real-World Patient Consensus | 88.00% Worth It (14 anonymous logs) | DotMD Zero-PHI Patient Ledger |
Paroxetine Hydrochloride Patient Community, Cohort Filters & Dosage Logs
Cross-verified Paroxetine Hydrochloride (serotonin reuptake inhibitor) monograph synthesizing RxNorm 1738803, openFDA FAERS signals, and $5.66–$34.50 cash benchmarks.
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