Suboxone (Buprenorphine/Naloxone) for Severe Opioid Withdrawal (COWS 27)
Yes, Suboxone is the appropriate first-line treatment for this patient with a COWS score of 27, which indicates moderately severe withdrawal requiring immediate buprenorphine administration. 1, 2
Why Buprenorphine is the Correct Choice
Your patient's COWS score of 27 falls in the "moderately severe" range (25-36), which clearly exceeds the threshold of >8 required for safe buprenorphine initiation. 1 This score confirms active withdrawal and eliminates the risk of precipitated withdrawal, which is the primary concern when administering buprenorphine. 2
Buprenorphine demonstrates superior efficacy compared to all alternatives:
- Reduces withdrawal severity more effectively than clonidine or lofexidine (effect size: small to moderate) 1, 3
- Patients stay in treatment significantly longer (large effect size) 3
- Treatment completion rates are 1.6 times higher than alpha-2 agonists 1
- Number needed to treat is 4—meaning for every 4 patients treated with buprenorphine versus clonidine, one additional patient completes treatment 1
- Has an 85% probability of being the most effective treatment option 1, 2
Dosing Protocol for COWS 27
Initial dose: 8 mg sublingual buprenorphine/naloxone 1, 2
The guideline recommends 4-8 mg based on withdrawal severity; with a COWS of 27, start at the higher end (8 mg). 1, 2
Reassessment and titration:
- Reassess COWS after 30-60 minutes 1, 2
- If withdrawal persists (COWS remains >8), give additional 2-4 mg doses at 2-hour intervals 2
- Target Day 1 total dose: 8-12 mg for most patients 2
- Day 2 and maintenance: 16 mg daily (standard for most patients) 1, 2
Critical Timing Requirements Before Administration
You must confirm adequate time has passed since last opioid use to prevent precipitated withdrawal: 1, 2
- Short-acting opioids (heroin, morphine IR, oxycodone IR): >12 hours 1, 2
- Extended-release formulations (OxyContin, MS Contin): >24 hours 1, 2
- Methadone maintenance patients: >72 hours 1, 2
The high COWS score (27) provides additional reassurance that sufficient time has elapsed, but you must still verify the timing and type of last opioid used. 2
Discharge Planning
For X-waivered providers (note: X-waiver eliminated as of 2023): 2
- Prescribe buprenorphine/naloxone 16 mg sublingual daily
- Duration: 3-7 days or until follow-up appointment
- Sample prescription: "Buprenorphine/naloxone 8 mg/2 mg SL film, take 2 films once daily, dispense #6-14, no refills" 1
For non-waivered providers: 2
- Can administer (but not prescribe) buprenorphine for up to 72 hours
- Must arrange referral for ongoing treatment 2
Mandatory harm reduction measures at discharge: 1, 2
- Provide take-home naloxone kit with overdose prevention education
- Offer hepatitis C and HIV screening
- Consider reproductive health counseling 1, 2
Managing Precipitated Withdrawal (If It Occurs)
Despite the high COWS score making this unlikely, if precipitated withdrawal occurs:
Primary treatment: Give MORE buprenorphine 2, 4
- This is counterintuitive but pharmacologically sound and proven effective 2, 4
- Buprenorphine's high receptor affinity means increasing the dose will eventually saturate receptors and relieve symptoms 4
Adjunctive symptomatic management: 2, 5
- Clonidine or lofexidine for autonomic symptoms (tachycardia, hypertension, sweating)
- Promethazine or ondansetron for nausea/vomiting
- Benzodiazepines for anxiety and muscle cramps
- Loperamide for diarrhea 2
Why Not Alternative Treatments?
Methadone: 1
- Similar efficacy to buprenorphine for withdrawal management
- Less practical in ED settings due to regulatory restrictions
- Cannot be prescribed for take-home use without special licensure
- May interfere with ongoing treatment programs 1
- Significantly less effective than buprenorphine
- Lower treatment completion rates
- More severe withdrawal symptoms persist
- Appropriate only when buprenorphine is contraindicated or unavailable 1, 5
Common Pitfalls to Avoid
Never administer buprenorphine if: 1, 2
- Patient is not in active withdrawal (COWS <8)
- Insufficient time has passed since last opioid use (see timing requirements above)
- Patient is intoxicated with alcohol, benzodiazepines, or other sedatives
- Patient is a methadone maintenance patient who used methadone <72 hours ago 1, 2
Do not discontinue buprenorphine once started: 2
- Discontinuation precipitates withdrawal and dramatically increases relapse risk to more dangerous opioids
- Buprenorphine for opioid use disorder is long-term treatment, not just for acute withdrawal 2