NICE updated smoking cessation guidance (NG209) and alcohol-use disorders guidance (CG115) with new evidence on e-cigarettes, varenicline availability, and integrated care pathways for substance misuse.
Smoking, Alcohol & Substance Misuse: Your GP Survival Guide
Because "just say no" isn't exactly evidence-based medicine (and your patients deserve better than a leaflet)
Date Updated: November 17, 2024
⭐ Executive Summary: What You'll Master Today
Because you have 47 other things to do before lunch, and that's just the morning list
✓ What This Page Covers:
- • Data-gathering & examination strategies that actually work
- • Diagnostic frameworks (because AUDIT isn't just for accountants)
- • Red flags that'll keep you awake at night (in a good way)
- • Management approaches beyond "have you tried stopping?"
- • Safeguarding essentials for vulnerable patients
- • DVLA requirements (yes, they matter)
- • Exam-focused content for AKT, SCA, and WPBA
⚡ Quick Facts at a Glance:
⬇️ Downloads
⚡ Brainy Bites: Essential Addiction Medicine Wisdom
✓ Key Questions for Data Gathering
"When did you last feel in control of your drinking/smoking/drug use?" - This reveals insight and motivation better than quantity questions.
"What would need to change for you to consider stopping?" - Explores readiness without being confrontational.
"Who else is affected by this?" - Opens safeguarding discussions naturally.
"Have you ever tried to cut down or stop before?" - Assesses previous attempts and withdrawal experiences.
⚠️ Red Flags – What Not to Miss!
🚨 Wernicke's Triad: Confusion + Ophthalmoplegia + Ataxia
Give thiamine BEFORE glucose!
🚨 Cocaine Chest Pain = Potential MI
Don't give beta-blockers (unopposed alpha stimulation)
🚨 Children + Chaotic Substance Use = Safeguarding
Think neglect, unsafe storage, domestic violence
🚨 IV Drug Use + Fever = Endocarditis Until Proven Otherwise
Blood cultures, echo, urgent cardiology
🩺 1. Data-Gathering & Examination Tips
General Principles
Creating safety and reducing stigma in consultations
The Golden Rule
Approach with curiosity, not judgment. Your patient is the expert on their own experience - you're just helping them find a way forward that works for them.
Validated Screening Tools
- • AUDIT-C: 3 questions, perfect for busy consultations
- • Full AUDIT: When you need the complete picture
- • ASSIST: Multi-substance screening tool
- • Fagerström Test: Nicotine dependence assessment
Creating Safety
- • Start with open questions
- • Normalize the conversation
- • Avoid "why" questions (sound judgmental)
- • Use their language, not medical jargon
Focused History Taking Approach
The FRAMES Approach
- Feedback - Share what you've observed
- Responsibility - Emphasize their choice
- Advice - Give clear, specific guidance
- Menu - Offer options, not ultimatums
- Empathy - Show understanding
- Self-efficacy - Build confidence they can change
Focused Smoking History
Essential Questions
- • Amount & Duration: "How many per day? For how long?"
- • Type: Cigarettes, roll-ups, vapes, heated tobacco, shisha
- • Triggers: Stress, social, routine, emotional
- • Previous Attempts: What worked? What didn't?
- • Quit Aids Used: NRT, varenicline, bupropion, e-cigarettes
- • Withdrawal Symptoms: Cravings, irritability, weight gain
Readiness Assessment
"On a scale of 1-10, how ready are you to quit smoking?"
- • 1-3: Not ready (focus on motivation)
- • 4-6: Ambivalent (explore pros/cons)
- • 7-10: Ready (action planning)
Focused Alcohol History
Quantity & Pattern
- • Units per week: Use specific examples
- • Pattern: Daily vs weekend binge
- • Morning drinking: Red flag for dependence
- • Loss of control: "Do you drink more than intended?"
- • Tolerance: "Do you need more to feel the same effect?"
Impact Assessment
- • Work: Absences, performance issues
- • Relationships: Arguments, isolation
- • Finances: Money spent on alcohol
- • Health: Sleep, mood, physical symptoms
- • Legal: Driving, public order offences
CAGE Questions (Classic but Limited)
- • Cut down - Ever felt you should cut down?
- • Annoyed - Annoyed by criticism of drinking?
- • Guilty - Felt guilty about drinking?
- • Eye opener - Morning drink to steady nerves?
2+ positive = likely alcohol problem
Focused Drug Misuse History
Substance Details
- • Substances used: Be specific (heroin, cocaine, cannabis, etc.)
- • Route: Oral, snorting, smoking, IV injection
- • Frequency: Daily, weekly, binge patterns
- • Poly-drug use: Very common in primary care
- • Sourcing: Street dealers, online, prescription drugs
Risk Assessment
- • Injecting risks: Needle sharing, vein damage
- • Overdose history: Previous episodes, naloxone use
- • Blood-borne viruses: Hep B/C, HIV status
- • Mental health: Depression, psychosis, anxiety
- • Social impact: Housing, employment, relationships
High-Risk Combinations
- • Opioids + Alcohol/Benzos: Respiratory depression risk
- • Stimulants + Depressants: Masking effects, overdose risk
- • Multiple CNS depressants: Additive sedation
Red-Flag Questions to Ask
Immediate Safety
- • "Have you had thoughts of harming yourself?"
- • "Any confusion or memory problems?"
- • "Any fits or seizures?"
- • "Seeing or hearing things that aren't there?"
Withdrawal Symptoms
- • "What happens when you try to stop?"
- • "Ever had shakes or sweats?"
- • "Any nausea or vomiting when cutting down?"
- • "Sleep problems when not using?"
Safeguarding Concerns
- • "Are there children in your household?"
- • "How do you store your substances?"
- • "Any domestic violence or abuse?"
- • "Financial problems due to substance use?"
Functional Impact
- • "Are you still driving?"
- • "Any problems at work?"
- • "Relationship difficulties?"
- • "Legal problems?"
Physical Examination
General Assessment
- • Vital signs: BP, pulse, temperature, oxygen sats
- • Hydration status: Mucous membranes, skin turgor
- • Nutritional state: Weight loss, muscle wasting
- • Mental state: Mood, cognition, psychosis
- • Neurological: Tremor, ataxia, nystagmus
Specific Signs
- • Injection sites: Track marks, abscesses, thrombosis
- • Liver disease: Jaundice, hepatomegaly, ascites
- • Alcohol neuropathy: Peripheral sensation
- • Smoking-related: Finger staining, dental health
- • Cardiac: Murmurs (endocarditis), arrhythmias
Wernicke's Encephalopathy Signs
- • Disorientation
- • Memory problems
- • Altered consciousness
- • Nystagmus
- • Diplopia
- • Gaze palsies
- • Unsteady gait
- • Truncal instability
- • Coordination problems
Only 10% have complete triad - high index of suspicion needed!
🎯 2. Diagnostic Approach & Investigations
The 5-Step Framework
- 1. Identify misuse: Is there a problem?
- 2. Quantify severity: Hazardous, harmful, or dependent?
- 3. Assess harm: Physical, psychological, social
- 4. Consider safeguarding: Vulnerable adults, children
- 5. Plan management: Brief intervention, referral, or specialist care
Hazardous Use
Pattern likely to cause harm if continued
Harmful Use
Already causing physical/psychological harm
Dependent Use
Loss of control, tolerance, withdrawal
Essential Blood Tests
- • FBC: Macrocytosis (MCV >100), thrombocytopenia
- • LFTs: AST:ALT ratio >2:1 suggests alcohol
- • GGT: Sensitive but not specific marker
- • U&E: Dehydration, electrolyte imbalance
- • Glucose: Hypoglycemia risk
- • Lipids: Hypertriglyceridemia
Additional Considerations
- • Liver fibrosis tests: FIB-4, NAFLD score (local pathways)
- • Thiamine deficiency: Clinical assessment
- • Folate/B12: If macrocytic anemia
- • Magnesium: Often low in chronic alcohol use
- • Phosphate: Refeeding syndrome risk
Interpretation Tips
- • Normal LFTs don't exclude alcohol problems
- • GGT can be raised by many medications
- • MCV >100 in young person = think alcohol
- • AST:ALT ratio >2:1 is suggestive but not diagnostic
🧠 3. Differential Diagnosis
Common Presentations & Differentials
Unexplained Weight Loss
- • Alcohol-related malnutrition
- • Stimulant misuse (cocaine, amphetamines)
- • Malignancy (GI, lung)
- • Hyperthyroidism
- • Chronic infection (TB, HIV)
Cognitive Impairment
- • Alcohol-related brain damage
- • Wernicke-Korsakoff syndrome
- • Substance-induced psychosis
- • Early-onset dementia
- • Vitamin deficiencies (B1, B12)
💊 4. Common Street Drugs
Common Street Drugs: Stimulants & Hallucinogens
| Drug | Official Name / Class | Common Street Names | What It Does (Effects) | Typical UK Price | Addictive? | Major Harms / Risks (GP-relevant) |
|---|---|---|---|---|---|---|
| Cannabis | Cannabis (Class B) | Weed, skunk, hash, bud, grass | Relaxation, euphoria, altered perception, increased appetite | £10–£20 per gram | Psychologically addictive | Anxiety, panic, psychosis in vulnerable individuals, amotivation, impaired concentration, cannabis hyperemesis. Smoking ↑ COPD risk. |
| Cocaine (powder) | Cocaine hydrochloride (Class A) | Coke, charlie, gear, sniff | Euphoria, energy, confidence | £40–£80 per gram | Highly addictive | Arrhythmias, MI, stroke, agitation, dependence, nasal septum damage, paranoia. |
| Crack cocaine | Cocaine freebase (Class A) | Crack, rocks, hard | Intense 5–10-min high, rush, cravings | £10–£20 per "rock" | Extremely addictive | Severe dependency, respiratory problems (if smoked), violence risk, psychosis, high overdose risk. |
| MDMA | 3,4-Methylenedioxymethamphetamine (Class A) | Ecstasy, molly, mandy | Empathy, energy, sensory enhancement | £20–£30 per pill; £40–£60 per gram | Moderately addictive | Hyperthermia, dehydration, hyponatraemia, serotonin syndrome, comedown depression/anxiety. |
| Amphetamines | Amphetamine sulphate (Class B) | Speed, whizz, billy | Alertness, energy, reduced appetite | £10 per gram (low-purity "base" typically used) | Moderately addictive | Insomnia, anxiety, arrhythmias, weight loss, psychosis risk. |
| Methamphetamine | Methamphetamine (Class A) | Crystal meth, ice, tina | Intense stimulation, euphoria | £40–£80 per gram | Extremely addictive | Severe mental health harm, tooth decay ("meth mouth"), paranoia, very high dependency. |
| LSD | Lysergic acid diethylamide (Class A) | Acid, tabs, trips | Hallucinations, altered perception, emotional shifts | £5–£10 per tab | Not physically addictive | Anxiety, panic, "bad trips", triggering psychosis, dangerous behaviour due to altered reality. |
| Magic Mushrooms | Psilocybin (Class A) | Shrooms, mushies | Hallucinations, introspection | £10–£20 per dose | Low addiction risk | Panic, nausea, vomiting, psychological distress, accidental injuries. |
Common Street Drugs: Depressants & Others
| Drug | Official Name / Class | Common Street Names | What It Does (Effects) | Typical UK Price | Addictive? | Major Harms / Risks (GP-relevant) |
|---|---|---|---|---|---|---|
| Heroin | Diamorphine (Class A, opioid) | Brown, gear, H, smack | Sedation, euphoria, pain relief | £30–£50 per gram | Very addictive (physical + psychological) | Overdose → respiratory depression & death, constipation, infections, BBVs if injected, skin ulcers/abscesses. |
| Ketamine | Ketamine hydrochloride (Class B) | K, ket, special K | Dissociation, floating sensation, pain-numbing | £20–£40 per gram | Low–moderate addiction risk | Bladder damage ("ketamine bladder"), ulcers, memory issues, falls/accidents, tachycardia. |
| GHB/GBL | Gamma-hydroxybutyrate / lactone (Class B) | G, Gina | Sedative, euphoria, increased libido | £50–£100 for 100 ml | Highly addictive | Very narrow dose window → respiratory arrest, coma, memory loss, dependency withdrawal → life-threatening. |
| Benzodiazepines (street) | Diazepam/alprazolam counterfeit tablets (Class C without prescription) | Blues, vallies, benzos, zannies | Sedation, anxiolytic | £1–£5 per tablet | High dependence risk | Respiratory depression esp. with alcohol, blackouts, severe withdrawal seizures. |
| Nitrous oxide | Nitrous oxide (Class C) | Nos, balloons, whippets | Euphoria, giggling, brief dissociation | £1–£3 per canister | Low physical addiction; psychological possible | B12 depletion → neuropathy, falls, frostbite burns, hypoxia if misused in large volumes. |
| Spice | Synthetic cannabinoids (Class B) | Spice, Mamba | Extreme intoxication, unpredictable effects | £10–£30 per gram | Moderately addictive | Psychosis, seizures, collapse, erratic behaviour; especially harmful in homeless/prison settings. |
| Methadone (illicit) | Methadone (Class A without script) | Green, phy | Opioid sedation | £5–£20 per 10–20 ml illicit | Addictive | Overdose, respiratory depression, long QT. |
| Pregabalin / Gabapentin (misused) | Pregabalin (Class C), Gabapentin (Class C) | Buds, gabbies, pregabs | Sedation, dissociation, euphoria in high doses | 50p–£3 per tablet | Moderately addictive | Respiratory depression esp. with opioids/benzos/alcohol, overdose risk. |
📄 5. Common Conditions
Substance-Related Conditions
Alcohol-Related
- • Alcohol use disorder
- • Alcoholic liver disease
- • Alcohol withdrawal syndrome
- • Wernicke-Korsakoff syndrome
- • Alcoholic cardiomyopathy
Smoking-Related
- • Nicotine dependence
- • COPD
- • Lung cancer
- • Cardiovascular disease
- • Peripheral vascular disease
Drug-Related
- • Opioid use disorder
- • Stimulant-induced psychosis
- • Cannabis hyperemesis syndrome
- • Injection-related infections
- • Substance-induced mood disorders
⚠️ 6. Red Flags & Conditions Not to Miss
🛡️ Safeguarding Concerns
Children at Risk
- • Parental substance misuse → neglect
- • Unsafe storage of substances
- • SIDS risk (smoking, alcohol)
- • Chaotic home environment
- • Domestic violence
Vulnerable Adults
- • Financial exploitation
- • Cuckooing (home takeover)
- • Sexual exploitation
- • Debt to dealers
- • Unsafe living conditions
⚠️ Medical Red Flags
🚨 Immediate Threats
- • Wernicke's triad (confusion + eye signs + ataxia)
- • Delirium tremens (hallucinations + hyperthermia)
- • Cocaine chest pain (MI risk)
- • Opioid overdose (respiratory depression)
- • Severe withdrawal (seizures)
🚨 IV Drug Use Complications
- • Endocarditis (fever + murmur + IV use)
- • Necrotizing fasciitis
- • Deep vein thrombosis
- • Septic emboli
📄 Legal/Medico-Legal
DVLA Obligations
- • Alcohol dependence → inform DVLA
- • Drug misuse → assess fitness to drive
- • Seizure history → driving restrictions
- • Patient must inform DVLA
Prescribing Responsibilities
- • Controlled drug regulations
- • Diversion risk assessment
- • Safe storage advice
- • Monitoring requirements
🚨 7. Red Flags for Street Drugs
💀 High Overdose Risk
- Heroin, methadone, benzodiazepines, GHB, pregabalin especially when mixed with alcohol.
- Co-ingestion is the biggest factor in fatal toxicity.
🔗 High Dependence Risk
- Heroin, crack, cocaine, methamphetamine, benzos, GHB, pregabalin.
⚠️ Major GP-relevant Harms
- Psychosis: cannabis (high-potency), cocaine, amphetamines, spice, LSD.
- Acute MI / arrhythmia: cocaine, amphetamines.
- BBVs: injecting heroin/crack → Hep B/C, HIV.
- Urological harm: ketamine → severe bladder damage.
- Neurological harm: Nitrous oxide → B12 deficiency neuropathy.
- Mental health deterioration: almost all stimulants + synthetic cannabinoids.
❤️ 8. Management Frameworks
Treatment Approaches
Brief Interventions
- • 5As model (Ask, Advise, Assess, Assist, Arrange)
- • FRAMES approach
- • Motivational interviewing
- • Harm reduction strategies
- • Relapse prevention planning
Pharmacological Options
- • Nicotine replacement therapy
- • Varenicline for smoking cessation
- • Acamprosate for alcohol dependence
- • Methadone/buprenorphine for opioid dependence
- • Naltrexone for alcohol/opioid dependence
🛡️ 9. Keeping Ex-alcoholics off the Alcohol: Relapse Prevention
✔ Confirm abstinence
- Patient should usually be abstinent for 7–14 days (varies by drug).
- Ensure no acute withdrawal symptoms (CIWA-Ar should be 0–7).
- If still drinking daily → specialist alcohol service referral; don't start relapse-prevention meds during active drinking.
✔ Baseline bloods
- LFTs
- U&E
- FBC
- INR if liver disease suspected
- Consider ECG if heart problems (disulfiram risk)
- Check pregnancy status if relevant
✔ Assess suitability
Past reactions, liver status, mental health stability, motivation, family support.
Purpose & Evidence
- Purpose: Reduces cravings and helps maintain abstinence.
- Evidence: Most widely used first-line medication in UK relapse prevention.
Dosing
- 666 mg (two 333 mg tablets) TDS
- If weight < 60 kg → 333 mg TDS
- Start ASAP after abstinence is achieved—ideally within 7 days of stopping alcohol.
Duration & GP Initiation
- How long? Minimum 6 months, often up to 12 months.
- Can GPs start it? Yes. Safe for GP initiation, especially with local guidelines.
Warnings & Monitoring
- Very safe drug overall.
- Causes diarrhoea in up to 33%.
- Not hepatotoxic (good for patients with liver disease).
- Continue even if slip occurs UNLESS they return to heavy drinking—seek review.
- Monitoring: LFTs at baseline, then only if clinically indicated.
Purpose & Dosing
- Purpose: Reduces the rewarding effects of alcohol → fewer cravings, fewer heavy-drinking days.
- Dosing: Start 25 mg daily for 3 days, then 50 mg OD.
GP Initiation
- Can GPs start it? Yes, but local pathways differ. Many areas suggest specialist initiation with GP continuation under shared care.
- Avoid in opioid users — can precipitate immediate withdrawal.
Warnings
- Must be opioid-free for 7–10 days.
- Causes nausea, headache, low mood in some.
- Avoid in acute hepatitis or liver failure.
Monitoring
- Baseline LFTs
- Repeat at 1 month, then 3 months, then every 6 months.
- Stop if LFTs > 3× ULN or symptoms of hepatitis.
Purpose & Mechanism
- Purpose: Creates very unpleasant reaction if alcohol is consumed—deterrent therapy.
- How it works: Blocks aldehyde dehydrogenase → alcohol consumption causes:
- flushing
- nausea/vomiting
- palpitations
- chest pain
- hypotension
- potentially life-threatening collapse
Dosing & GP Initiation
- Dosing: 500 mg OD for 1–2 weeks, then maintenance 200 mg OD (range 100–200 mg).
- Can GPs start it? Yes, BUT ensure:
- Patient is highly motivated.
- Good supervision from family/friend (if possible).
- No cognitive impairment.
Absolute Warnings to Tell Patients
This is vital and MUST be clearly explained:
- Do NOT drink alcohol at all — even tiny amounts.
- mouthwash
- perfumes/aftershave
- cooking wine
- vinegar (some types)
- alcohol-based hand gels
- cough syrups
- The reaction can occur for up to 7 days after last dose.
- Can cause hepatitis → watch for jaundice, abdominal pain, dark urine.
- Avoid if:
- severe cardiac disease
- psychosis/pregnancy
- significant liver disease
- Interaction with metronidazole → can cause psychosis.
Monitoring
- Baseline LFTs
- Repeat: 2 weeks, 3 months, 6 months, then PRN.
- BP and mental health review periodically.
D. Nalmefene (Selincro)
- Used for reduction in alcohol consumption (NOT for abstinence).
- Taken as needed → 1 tablet on days the patient anticipates drinking.
- Requires ongoing psychosocial support.
- Start only if drinking > risk levels.
E. Thiamine + Vitamin Support
- Essential in anyone with past alcohol dependence:
- Oral thiamine 100 mg TDS for several months.
- Give Pabrinex IV only in hospital/urgent care if high risk of Wernicke's.
- Confirm abstinence
- Assess readiness & motivation
- Order baseline labs
- Choose medication (Acamprosate first-line unless contraindicated)
- Provide written and verbal safety info
- Involve alcohol services if possible
- Arrange close follow-up
- 1–2 weeks after start
- Monthly for 3 months
- Then every 3 months
| Situation | Best Option |
|---|---|
| Wants to reduce cravings | Acamprosate |
| Has strong "reward" drive from alcohol | Naltrexone |
| Needs a psychological deterrent | Disulfiram |
| Unsafe to give hepatotoxic meds | Acamprosate |
| Poor supervision / chaotic life | Avoid disulfiram |
| Wants "as needed" drinking reduction | Nalmefene |
"Severe Warning" Script You Can Say to a Patient (Disulfiram)
"If you take disulfiram, you absolutely must not drink alcohol at all. Even tiny amounts in mouthwash, aftershave, perfumes, hand gels, or cooking sauces can cause a dangerous reaction — flushing, vomiting, chest pain, collapse. This reaction can still happen for up to seven days after the last tablet. If you accidentally drink, seek urgent medical help."
📖 10. Exams & GP Training Relevance
AKT Favorites
- • AUDIT-C scoring: 3-question screening tool
- • Hepatitis B/C natural history: Chronic infection rates
- • Cocaine cardiac risks: MI, arrhythmias, avoid beta-blockers
- • Substitute prescribing: Methadone vs buprenorphine
- • Wernicke's triad: Only 10% have complete triad
- • Cannabis hyperemesis: Hot baths provide relief
- • DVLA regulations: Notification requirements
SCA Scenarios
- • Heavy drinking bus driver: DVLA obligations, fitness to drive
- • Teenager with cannabis use: Motivational interviewing, harm reduction
- • Grandmother with A&E alcohol notifications: Safeguarding concerns
- • Pregnant woman smoking: Brief intervention, NRT safety
- • IV drug user with fever: Endocarditis risk, urgent referral
- • Benzodiazepine dependence: Withdrawal risks, slow reduction
WPBA Opportunities
- • COT: Smoking cessation consultation
- • CAT: Domestic violence linked to alcohol misuse
- • CEPS: Injection-site complications management
- • Mini-CEX: AUDIT questionnaire administration
- • CbD: Safeguarding referral for chaotic drug use
- • PSQ: Patient feedback on addiction consultations
🌐 11. Useful Resources
Clinical Guidelines
You've Got This! 💪
Remember: You don't need to be an addiction specialist to provide excellent substance misuse care. You just need to know when to worry, when to treat, and when to refer.
Every conversation about substance use is a chance to plant a seed of change. Even if they're not ready today, your non-judgmental approach and genuine concern will be remembered when they are ready to make that change.