Clinical Tools

CLINICAL TOOLS

Evidence-Based Tools for the Psychiatric Prescriber

Clinical reference tools for PMHNPs — titration schedules, switching protocols, and interaction checking. All content is reviewed by board-certified PMHNPs and grounded in current clinical guidelines.

🔒 Members Only. These clinical references are intended for Lumina members (licensed prescribers and PMHNP students). Join the waitlist →

⚠ Draft — Pending Clinical Review. These tools are interactive clinical decision support in active development. Verify every result against FDA labeling and current guidelines. Do not use as the sole basis for patient care decisions until final review is published.

Available Tools

💊 Drug Interaction Checker

Curated psychiatric drug-interaction matrix with severity ratings. Jump to Tool →

📊 Titration Guide

Step-by-step titration schedules for psychiatric medications — Lamotrigine, Lithium, and more. Jump to Tool →

🔄 Switching & Withdrawal Protocols

Interactive calculators: SSRI↔MAOI washout, CIWA-Ar, COWS, benzodiazepine taper, antipsychotic cross-taper. Jump to Tool →

💊 Drug Interaction Checker

About this tool. Interaction checking uses Lumina's curated psychiatric interaction matrix. The NIH retired its public drug-interaction API in January 2024, so a free live multi-source check is not available. Not a substitute for Lexicomp, Micromedex, or UpToDate.
What's in the curated matrix?

Serotonergic combinations & MAOI washouts; lithium with NSAIDs/ACE-I/ARB/thiazides; clozapine with fluvoxamine/ciprofloxacin/smoking cessation; lamotrigine with valproate/enzyme inducers/estrogen-containing OCPs; carbamazepine autoinduction & OCP failure; QTc-additive combinations; CYP2D6 inhibitor + tamoxifen; benzodiazepine + opioid; bupropion seizure-threshold pairings; stimulant + MAOI; buprenorphine + benzodiazepine; methadone QTc & CYP3A4. See sources at page bottom.

📊 Titration Guide

Cross-referenced against FDA prescribing information and current clinical guidelines. Jump to: Lamotrigine · Lithium · Quetiapine · Clozapine · Buprenorphine · Naltrexone · Methadone

Lamotrigine (Lamictal)

Indication referenced: Bipolar I maintenance. Not FDA-approved for acute bipolar depression monotherapy.

⚠ BOXED WARNING — SJS/TEN/DRESS. Risk highest in weeks 2–8. Risk increases with: exceeding starting dose, exceeding escalation, or concomitant valproate without dose adjustment. Discontinue at first sign of rash unless clearly non-drug-related. Pediatric risk > adult.

Standard adult (no interacting AEDs)

WeekDose
1–225 mg PO daily
3–450 mg PO daily
5100 mg PO daily
6200 mg PO daily (target)

With valproate (half-dose)

WeekDose
1–225 mg PO every other day
3–425 mg PO daily
550 mg PO daily
6100 mg PO daily (target)

With enzyme inducers without VPA (CBZ, phenytoin, phenobarbital, primidone, rifampin) — double-dose

WeekDose
1–250 mg PO daily
3–4100 mg PO daily (divided)
5200 mg PO daily (divided)
6300 mg PO daily (divided)
7400 mg PO daily (divided) (target)

Missed doses / restart

If lamotrigine has been missed for more than 5 consecutive days, restart titration from Week 1 to mitigate boxed-warning rash risk. (Half-life is shorter with inducers and longer with valproate — when in doubt, restart.)

Counseling / hold criteria

  • Counsel: call immediately for any rash, especially weeks 1–8.
  • Hold for rash with mucosal involvement, fever, lymphadenopathy, facial swelling, eosinophilia, or systemic symptoms (possible DRESS).
  • Estrogen-containing OCPs and pregnancy reduce levels ~50%; anticipate level rebound during the OCP pill-free week. Consider TDM and dose adjustment.

Sources: Lamotrigine FDA PI (current). Stahl, Prescriber's Guide 7e. Maudsley Prescribing Guidelines 14e. APA Bipolar Practice Guideline.

Lithium Carbonate

Indications referenced: Bipolar I (acute mania, maintenance). Narrow therapeutic index.

⚠ Toxicity Risk. Toxicity may occur near therapeutic levels. Hold for acute illness with vomiting/diarrhea, before iodinated contrast, and review when starting NSAID/RAAS-blocker/diuretic.

Baseline workup

  • SCr/eGFR, BUN, electrolytes
  • Urinalysis (baseline concentrating ability)
  • TSH, free T4
  • Calcium
  • CBC
  • Urine pregnancy test (Ebstein anomaly counseling)
  • ECG if age ≥40 or cardiac history
  • Weight/BMI

Starting dose

Adult: 300 mg PO BID–TID (600–900 mg/day). Elderly / impaired renal function: 150 mg BID. IR for initiation; ER (Lithobid) reduces GI upset and peak-related tremor.

Target serum levels (12-h trough)

IndicationTarget (mEq/L)
Acute mania1.0–1.2 (up to 1.5 if tolerated)
Maintenance0.6–1.0
Elderly0.4–0.8
Toxicity≥1.5 mild · ≥2.0 moderate · ≥2.5 severe (medical emergency)

Monitoring

ParameterFrequency
Lithium level5 days after each dose change → every 3 mo while titrating → every 6–12 mo when stable
SCr/eGFRq3 mo × 1 year, then q6–12 mo
TSHq6 mo
CalciumAnnually
Weight, BMIEvery visit

Level timing

Levels must be a 12-hour trough. Off-trough levels are not interpretable.

Key drug interactions

  • NSAIDs (except aspirin, sulindac): raise levels.
  • Thiazides: reduce clearance, raise levels.
  • ACE-I / ARBs: raise levels.
  • Dehydration / low-Na diet: raises levels.
  • Caffeine withdrawal: caffeine increases lithium renal clearance; cessation reduces clearance and raises levels.

Sources: Lithium FDA PI. Stahl 7e. APA Bipolar Practice Guideline. Maudsley 14e. NICE CG185.

Quetiapine (Seroquel IR / XR)

Indications referenced: Schizophrenia, Bipolar I (acute mania, depression, maintenance), MDD adjunctive (XR).

Schizophrenia (IR)

Day 1: 25 mg BID. Day 2: 50 mg BID. Day 3: 100 mg BID. Day 4: 150 mg BID. Day 5+: titrate by 25–50 mg BID per response. Target 300–400 mg/day in divided doses; max 800 mg/day.

Bipolar mania (IR)

Day 1: 50 mg BID. Day 2: 100 mg BID. Day 3: 150 mg BID. Day 4: 200 mg BID. Target 400–800 mg/day by day 6.

Bipolar depression (XR)

Day 1: 50 mg QHS. Day 2: 100 mg QHS. Day 3: 200 mg QHS. Day 4 onward: 300 mg QHS (label-recommended target).

MDD adjunctive (XR)

Days 1–2: 50 mg QHS. Day 3+: 150 mg QHS. Range 150–300 mg/day.

Special populations

  • Elderly: start 25–50 mg/day; titrate by 25–50 mg/day. Mortality black box in dementia-related psychosis.
  • Hepatic impairment: start 25 mg/day, increase by 25–50 mg/day to effective dose.
  • CYP3A4 inhibitors (ketoconazole, clarithromycin): reduce dose to 1/6 of usual. CYP3A4 inducers (carbamazepine, phenytoin, rifampin): may need 5x dose increase.

Monitoring

Baseline weight, BP, fasting glucose, lipid panel. Repeat at 12 weeks, then annually. Consider lens/cataract eval per label (q6mo). ECG if QTc risk factors.

Sources: Quetiapine FDA PI (Seroquel, Seroquel XR). Stahl 7e. Maudsley 14e. APA Schizophrenia 2020.

Clozapine (Clozaril)

Indication referenced: Treatment-resistant schizophrenia. Recurrent suicidal behavior in schizophrenia/schizoaffective. REMS required for ANC monitoring (FDA shared system effective Nov 2024).

Black box: severe neutropenia, orthostatic hypotension/bradycardia/syncope, seizures, myocarditis/cardiomyopathy, dementia mortality.

Baseline workup

  • CBC with differential (ANC must be ≥1500/µL; ≥1000/µL for benign ethnic neutropenia)
  • Weight, BMI, waist circumference
  • Fasting glucose, HbA1c, lipid panel
  • BP/HR (sitting and standing), ECG, troponin, CRP (myocarditis baseline)
  • LFTs, BUN/Cr
  • Pregnancy test if applicable; smoking and caffeine status (CYP1A2)

Standard inpatient titration

DayDose
112.5 mg PO once or BID
225 mg BID
3–5Increase by 25–50 mg/day to 100 mg BID
6–14Increase by 50–100 mg every 1–2 days to target
14+Target 300–450 mg/day in divided doses; max 900 mg/day

Outpatient / slow titration

Increase by 25 mg every 1–2 days. Therapeutic plasma level 350–600 ng/mL (toxicity risk >1000).

Missed doses

If ≥48 h missed, re-titrate from 12.5–25 mg. Cardiovascular collapse and death have occurred with rapid restart.

ANC monitoring (FDA REMS)

ANCAction
≥1500Continue; weekly x 6 mo, then q2wk x 6 mo, then monthly
1000–1499Continue; recheck 3x/week until ≥1500, then resume schedule
500–999Interrupt; daily ANC; resume when ≥1000
<500Discontinue (severe neutropenia). Heme consult. Daily ANC until ≥1000, then 3x/week until ≥1500.

Smoking and CYP1A2

Cigarette smoke induces CYP1A2; abrupt smoking cessation can raise levels 50–70%. Reduce dose ~25% within 1 week of cessation; recheck level.

Adjuncts

Anticholinergic burden (sialorrhea: bedtime atropine drops 1% sublingual or glycopyrrolate). Constipation prophylaxis (PEG, senna) — ileus is potentially fatal.

Sources: Clozapine FDA PI. Clozapine REMS Program (2024 update). Stahl 7e. Maudsley 14e (clozapine plasma level table). APA Schizophrenia 2020.

Buprenorphine for OUD (Suboxone, Subutex, Sublocade)

Indication referenced: Opioid use disorder maintenance. X-waiver eliminated by MAT Act 2023; any DEA-registered prescriber may now prescribe.

Baseline / induction readiness

  • Confirm OUD diagnosis (DSM-5)
  • Patient must be in objective opioid withdrawal: COWS ≥8 (preferred ≥12) before first dose to avoid precipitated withdrawal
  • Last short-acting opioid ≥12–16 h ago; long-acting ≥24–48 h; methadone ≥72 h (and at ≤30 mg)
  • Pregnancy test, LFTs, HIV/HCV screen

Day 1 induction (SL film/tablet)

TimeDose
0 h (after COWS confirmed)2–4 mg SL
+1–2 hIf withdrawal persists: 2–4 mg additional (total day 1: 8 mg recommended; up to 16 mg)

Day 2–7

Increase by 2–4 mg/day to target 16 mg/day (range 8–24 mg). Most patients stable at 16–24 mg/day. FDA max 24 mg/day for buprenorphine/naloxone (Suboxone).

Home / unobserved induction

Acceptable for patients with stable housing and reliable contact. Provide written COWS instructions, dosing schedule, and same-day phone follow-up.

Microinduction (Bernese method)

For patients on full opioid agonists who cannot tolerate withdrawal:

DayBuprenorphine
10.5 mg SL once
20.5 mg SL BID
31 mg SL BID
42 mg SL BID
53 mg SL BID
64 mg SL BID
712 mg SL once; stop full agonist
8+16 mg SL once daily

Sublocade (extended-release SC monthly)

Requires ≥7 days of stable transmucosal buprenorphine first. 300 mg SC abdominal x 2 monthly doses, then 100 mg SC monthly (may continue 300 mg/month if needed). Inject by HCP only.

Pregnancy

Buprenorphine monoproduct (Subutex) historically preferred; current evidence supports buprenorphine/naloxone as well. Continue MOUD — do not taper.

Sources: Buprenorphine FDA PIs (Suboxone, Subutex, Sublocade). SAMHSA TIP 63 (2021). ASAM National Practice Guideline 2020. MAT Act 2023.

Naltrexone (ReVia, Vivitrol)

Indications referenced: Alcohol use disorder, opioid use disorder (after detox).

Critical: patient must be opioid-free ≥7–10 days (short-acting) or 10–14 days (long-acting/methadone) before first dose. Naloxone challenge optional. Premature dose precipitates severe withdrawal.

Baseline workup

  • LFTs (AST/ALT, bilirubin); avoid if acute hepatitis or liver failure
  • Urine drug screen confirming no opioid use
  • Pregnancy test
  • Counseling on overdose risk if relapse occurs after blockade wears off (loss of tolerance)

Oral naltrexone (AUD or OUD)

Optional naloxone challenge: 0.4–0.8 mg IM/SC; observe 30 min for withdrawal. If negative: 50 mg PO daily. Some clinicians start with 25 mg x 1–2 days to assess tolerance. Maintenance 50 mg/day; may use 100 mg MWF or 150 mg M/Th regimens for adherence. Max 150 mg/dose.

Vivitrol (extended-release IM)

380 mg IM gluteal q4 weeks. Alternate buttocks. Use the supplied 1.5-inch needle for non-obese; 2-inch needle for obese patients. Avoid SC infiltration (necrosis risk).

Surgical / acute pain planning

Stop oral naltrexone 72 h before elective surgery; Vivitrol effect persists 30 days. For breakthrough acute pain: regional anesthesia, ketamine, NSAIDs, or high-dose opioids in monitored setting.

Monitoring

LFTs at baseline, 1 month, then q3–6 months. Counsel on overdose risk after discontinuation. Document medication-assisted treatment in shared care plan.

Sources: Naltrexone FDA PI (oral and Vivitrol). SAMHSA TIP 63 (OUD), TIP 49 (AUD). ASAM 2020. APA AUD Practice Guideline 2018.

Methadone for OUD

Indication referenced: Opioid use disorder maintenance. For OUD, must be dispensed via SAMHSA-certified Opioid Treatment Program (OTP). Office-based prescribing for OUD remains restricted (2024 SAMHSA rule expansion permits OTP take-home flexibility, not office prescribing).

Black box: respiratory depression, QTc prolongation/torsades, accidental ingestion (peds), neonatal opioid withdrawal. Variable half-life 8–59 h — steady state takes 5–10 days; peak respiratory depression > analgesic peak.

Baseline workup (OTP)

  • Confirm OUD diagnosis (DSM-5), document ≥1 year continuous opioid dependence (federal requirement, with exceptions)
  • ECG for QTc (especially if >100 mg/day anticipated, cardiac history, electrolyte abnormalities, or interacting drugs)
  • Pregnancy test, HIV/HCV/HBV screen, TB screen
  • Urine drug screen, breathalyzer
  • Med rec for QT-prolonging drugs (ondansetron, fluoroquinolones, fluconazole, antipsychotics)

Induction (SAMHSA / federal opioid treatment standards)

DayDose
120–30 mg PO (initial); reassess at 2–4 h. May give additional 5–10 mg if persistent withdrawal. Total day 1 must not exceed 40 mg unless documented tolerance.
2–4Hold day 1 dose; do not increase. Steady state not yet reached.
5+Increase by 5–10 mg every 5–7 days based on withdrawal symptoms and craving
MaintenanceTypical effective range 60–120 mg/day; some patients require >120 mg (check QTc and trough level)

QTc monitoring

QTcAction
<450 msContinue; recheck if dose >100 mg or new QT-prolonging drug
450–500 msDiscuss risk; reduce dose or switch to buprenorphine; remove QT-prolonging meds
>500 msStrongly consider discontinuation or alternative MOUD

Drug interactions

CYP3A4 inducers (rifampin, phenytoin, carbamazepine, efavirenz) lower methadone levels — risk of withdrawal and relapse. CYP3A4 inhibitors raise levels — risk of overdose. Avoid combining with benzodiazepines unless clinically essential (FDA 2017 advisory; black box).

Pregnancy

Methadone (or buprenorphine) is standard of care for OUD in pregnancy. Doses often need to increase by 30–50% in 3rd trimester due to increased clearance; may need split dosing. Continue MOUD — do not taper.

Sources: Methadone FDA PI. SAMHSA Federal Opioid Treatment Standards (42 CFR Part 8). SAMHSA TIP 63 (2021). ASAM National Practice Guideline 2020. CSAT Methadone Mortality Reassessment.

🔄 Switching & Withdrawal Protocols

Interactive calculators and scoring tools. All outputs are decision support — confirm against current FDA labeling and patient-specific factors.

Antidepressant Switching Tool

Per-drug, dose-aware switching schedules. Uses FDA prescribing information, Stahl 7e, Maudsley 14e, and serotonin-syndrome washout rules. Always individualize.

FINISH discontinuation mnemonic = Flu-like, Insomnia, Nausea, Imbalance, Sensory disturbance, Hyperarousal. Highest risk with paroxetine, venlafaxine IR, fluvoxamine; very low with fluoxetine.

CIWA-Ar (Alcohol Withdrawal)

10 items. Items 1–9: 0–7. Item 10 (orientation): 0–4. Max 67.

Total: 0

COWS (Clinical Opiate Withdrawal Scale)

11 items. For buprenorphine induction, target ≥8–12 to reduce risk of precipitated withdrawal.

Total: 0

Benzodiazepine & Z-Drug Taper Calculator

Comprehensive multi-BZD taper engine. Sums diazepam-equivalents across all entries, applies an evidence-based protocol, and outputs a step-by-step schedule with both diazepam-equivalent and original-drug mg per step. Includes CIWA-B (Busto 1989) and special-population modifiers.

Patient's current BZD/Z-drug regimen

Taper protocol

Special-population modifiers

CIWA-B — Clinical Institute Withdrawal Assessment for Benzodiazepines (Busto 1989)

Score after each dose reduction. Pause taper or extend interval if total >20.

Equivalence basis: Ashton 2002 / Maudsley 14e / Bostwick 2012. Z-drugs cross-tapered to diazepam at zolpidem 10 mg ≈ diazepam 10 mg, eszopiclone 3 mg ≈ diazepam 10 mg, zaleplon 20 mg ≈ diazepam 10 mg. Anchor: diazepam 10 mg = 1 unit.

Clinical sources: Ashton CH. Benzodiazepines: How They Work and How to Withdraw (2002, Newcastle). Maudsley 14e. Bostwick JR et al. 2012 J Clin Pharm Ther. SAMHSA TIP 45. VA/DoD SUD Guideline 2021.

Antipsychotic Switching Tool

Per-drug, dose-aware cross-taper schedules with chlorpromazine and olanzapine equivalents (Leucht 2016, Gardner 2010). Adjusts pace for receptor-binding mismatch, partial agonism, anticholinergic rebound, and LAI elimination tail.

Clozapine: re-titrate from 12.5–25 mg if ≥48 h missed. LAI overlap (Risperidone Consta ≈ 3 wk; Aripiprazole Maintena ≈ 14 d; Paliperidone Sustenna — no overlap needed when initiated with loading regimen).

📚 Clinical Citation Sheet (PMHNP Reviewer Reference)

Per-rule, per-protocol, and per-titration source mapping for board-certified PMHNP review prior to lifting the Draft banner. Click each section to expand.

Drug Interaction Checker — curated rule sources
Rule patternPrimary source(s)
SSRI/SNRI + MAOI — serotonin syndrome contraindicationFDA PI (all SSRIs/SNRIs/MAOIs); Boyer & Shannon NEJM 2005; Sternbach 1991
SSRI/SNRI + serotonergic opioid (tramadol, meperidine, tapentadol, methadone, fentanyl)FDA Drug Safety Communication 2016; tramadol/meperidine FDA PI
SSRI + triptan — serotonin syndrome (low absolute risk)FDA Alert 2006; Evans 2010 (Headache)
DXM + SSRI — serotonergic + CYP2D6FDA PI (dextromethorphan/quinidine, Nuedexta)
Lamotrigine + estrogen-containing OCP — ~50% level reductionLamotrigine FDA PI; Sabers 2003 (Neurology)
Enzyme-inducing AED + OCP — failure riskACOG Committee Opinion 540; AED FDA PIs (CBZ, PHT, OXC, topiramate >200 mg)
CYP2D6 inhibitor (paroxetine, fluoxetine, bupropion) + tamoxifen — reduced endoxifenFDA Drug Safety Comm 2009; NCCN Breast Cancer Guidelines
Clozapine + smoking cessation — CYP1A2 induction lossClozapine FDA PI; Maudsley 14e
Warfarin + SSRI — GI bleed riskFDA PI; Wallerstedt 2009 BMJ
SSRI + NSAID — GI bleed riskde Abajo 2008; AGA Clinical Practice Update 2019
BZD + alcohol or opioid — respiratory depressionFDA Black Box 2016 (BZD/opioid co-prescribing)
Methadone + CYP3A4 inducer — withdrawalMethadone FDA PI; SAMHSA TIP 63
Buprenorphine + BZD — respiratory depressionFDA Drug Safety Comm 2017; SAMHSA TIP 63
Aripiprazole / brexpiprazole / cariprazine dose adjustment with CYP3A4 or CYP2D6 inhibitorsRespective FDA PIs
Lurasidone / quetiapine / paliperidone with strong CYP3A4 inhibitorsRespective FDA PIs
Clozapine + valproate (level changes); valproate + carbapenem (level drop); CBZ + doxycycline / warfarinRespective FDA PIs; Maudsley 14e
Gabapentinoid + opioid — respiratory depressionFDA Drug Safety Comm 2019
Modafinil + OCP — failure riskModafinil FDA PI
Stimulant + antihypertensive — antagonism / BP swingsStimulant FDA PIs; AHA Statement 2008
SSRI + tamsulosin — orthostasisFDA PI; Bird 2013
Atomoxetine + CYP2D6 inhibitor / MAOIAtomoxetine FDA PI
Guanfacine + CYP3A4 modulatorsGuanfacine ER FDA PI (Intuniv)

Live label data is augmented at runtime by the OpenFDA /drug/label.json endpoint (boxed warnings, contraindications, drug interactions sections). RxNorm spelling autocomplete via /REST/spellingsuggestions.json.

Antidepressant Switching Tool — AD_META source mapping
Drug classHalf-life, MAOI washout, disc-syndrome rating
SSRIs (fluoxetine, sertraline, paroxetine, citalopram, escitalopram, fluvoxamine, vilazodone, vortioxetine)Each FDA PI; Stahl 7e Ch 7; norfluoxetine 7–15 d half-life requires 5-week MAOI washout for fluoxetine
SNRIs (venlafaxine IR/XR, desvenlafaxine, duloxetine, levomilnacipran, milnacipran)Each FDA PI; Stahl 7e; venlafaxine IR disc-syndrome rate documented in Fava 2006
Bupropion IR/SR/XL — MAOI hypertensive crisisBupropion FDA PI; Stahl 7e
TCAs — clomipramine 21-d MAOI washout (highly serotonergic)Clomipramine FDA PI; APA MDD Practice Guideline
MAOIs (phenelzine, tranylcypromine, isocarboxazid, selegiline transdermal, moclobemide) — 14-d MAO regeneration before serotonergic agentEach FDA PI; selegiline patch tyramine-diet threshold ≥9 mg/24 h
Hyperbolic taper for high disc-syndrome drugsHorowitz & Taylor 2019 Lancet Psychiatry; Maudsley Deprescribing Guidelines 2024
FINISH discontinuation mnemonicBerber 1998 (J Clin Psychiatry)
Antipsychotic Switching Tool — AP_META source mapping
ReferenceUse in tool
Leucht et al. 2016 Schizophrenia BulletinOlanzapine-equivalent doses for SGAs and FGAs (10 mg olanzapine reference)
Gardner et al. 2010 Am J PsychiatryChlorpromazine equivalents (international expert consensus method)
FDA PIsStarting dose, usual range, max dose for each drug; lurasidone food requirement; ziprasidone food + QTc; iloperidone slow titration; clozapine REMS
FDA Clozapine REMS Program (Nov 2024 update)ANC monitoring thresholds; missed-dose re-titration
Aripiprazole Maintena, Risperdal Consta, Sustenna/Trinza, Sublocade FDA PIsLAI overlap rules and elimination tail times
Stahl 7e and Maudsley 14eAnticholinergic burden, sedation, QTc, prolactin, weight ratings
Stroup et al. 2011 Am J PsychiatryPlateau / cross-taper outcome data
Titration Guides — per-drug source mapping
GuideSources
LamotrigineLamotrigine FDA PI (rash titration schedule); Calabrese 2003; APA Bipolar 2002 + reaffirmations; Maudsley 14e
LithiumLithium FDA PI; APA Bipolar Practice Guideline; NICE CG185; Maudsley 14e (level table)
Quetiapine IR/XRSeroquel and Seroquel XR FDA PIs; Stahl 7e; APA Schizophrenia 2020
ClozapineClozapine FDA PI; Clozapine REMS 2024; Maudsley 14e (plasma levels); APA Schizophrenia 2020
Buprenorphine (SL film/tab, Sublocade)Suboxone, Subutex, Sublocade FDA PIs; SAMHSA TIP 63 (2021); ASAM National Practice Guideline 2020; MAT Act 2023
Naltrexone (oral, Vivitrol)Naltrexone FDA PIs; SAMHSA TIP 63 and TIP 49; APA AUD 2018; ASAM 2020
Methadone for OUDMethadone FDA PI; SAMHSA Federal OTP Standards 42 CFR Part 8; SAMHSA TIP 63; ASAM 2020
Withdrawal scales — instrument citations
ScaleCitation
CIWA-Ar (Alcohol)Sullivan et al. 1989 Br J Addict 84:1353
COWS (Opiate)Wesson & Ling 2003 J Psychoactive Drugs 35:253
BZD taper (Ashton method)Ashton 2002 Benzodiazepines: How They Work and How to Withdraw (Newcastle)
Benzodiazepine & Z-Drug Taper — sources
ComponentSource
Equivalence anchor (diazepam 10 mg)Ashton 2002 (Newcastle); Maudsley 14e
Per-drug equivalence (alprazolam 0.5, clonazepam 0.5, lorazepam 1, oxazepam 15, etc.)Ashton 2002 Equivalence Table; Bostwick et al. 2012 J Clin Pharm Ther
Z-drug cross-tolerance (zolpidem 10 mg, eszopiclone 3 mg, zaleplon 20 mg)Maudsley 14e; FDA PIs; Brandt & Leong 2017
Ashton classic and accelerated protocolsAshton CH. Benzodiazepines: How They Work and How to Withdraw (2002)
Hyperbolic taperHorowitz & Taylor 2019 Lancet Psychiatry; Maudsley Deprescribing Guidelines 2024
VA/DoD inpatient short-actingVA/DoD Substance Use Disorder Clinical Practice Guideline 2021
Special-population modifiers (elderly, hepatic, pregnancy, opioid, prior seizure)Maudsley 14e; SAMHSA TIP 45; FDA Drug Safety Communication 2016 (BZD/opioid black box); ACOG Committee Opinion 711
CIWA-B scaleBusto UE et al. 1989 J Subst Abuse Treat
Phenobarbital cross-taper considerationKawasaki et al. 2012 J Hosp Med; ASAM guidance
Reviewer sign-off checklist
  • Verify each interaction rule against current Lexicomp / Micromedex entries
  • Spot-check 5 random switching scenarios against APA / NICE / Maudsley current edition
  • Confirm Quetiapine / Clozapine / Buprenorphine / Naltrexone / Methadone titration matches latest FDA PI
  • Confirm REMS, OTP, and 42 CFR Part 8 statements current as of review date
  • Document reviewer name, NPI, license number, review date, and version SHA in internal log before lifting Draft banner

Decision-support classification. This page is decision support for licensed prescribers, not a CDS-certified system, not a substitute for Lexicomp / Micromedex / UpToDate, and not a CDSS subject to FDA Section 520(o)(1)(E) device classification (per 21st Century Cures Act exemption: provides recommendations to HCPs, allows independent review of basis, does not analyze image/signal/pattern data). PMHNP reviewer sign-off required before removing the Draft banner.