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Other Substances

Evidence-based overview of nicotine, cannabis, and other commonly used substances.


๐Ÿ“– The Story: Beyond Alcohol and Caffeineโ€‹

Alcohol and caffeine get the most attention, but many people use other psychoactive substancesโ€”nicotine, cannabis, prescription medications, supplements, and more. Each has distinct mechanisms, risks, and potential benefits. The goal here is not to be moralistic but to provide clear, evidence-based information for informed decision-making.

Here's what makes this topic important: many substances are marketed with health claims that aren't supported by evidence, while others have legitimate therapeutic uses that are stigmatized. Nicotine patches aren't cigarettes. Medical cannabis isn't recreational use. Prescription stimulants aren't the same as street drugs. Context, dose, route of administration, and individual factors all matter.

The principle: Understand mechanism of action, evidence for benefits and harms, and make informed choices based on your health goals.


๐Ÿšถ The Journeyโ€‹

Whether quitting, reducing, or making informed decisions about substance use, the path involves understanding, honesty, and often discomfort before relief.

What to Expect (If Quitting/Reducing):

  • Week 1: Awareness can be uncomfortable; denial may surface
  • Weeks 2-4: Withdrawal symptoms (physical and psychological) peak then decline
  • Months 2-3: Cravings still exist but become manageable; benefits start showing
  • Months 3-6: New patterns established; occasional triggers but equipped to handle
  • 6+ Months: Significant health improvements; former use pattern feels distant

๐Ÿง  The Science: Common Substancesโ€‹

Nicotineโ€‹

Nicotine is a stimulant that binds to nicotinic acetylcholine receptors:

EffectMechanismResult
Dopamine releaseReward pathway activationPleasure, reinforcement, addiction
Acetylcholine increaseCognitive enhancementFocus, attention, memory
Norepinephrine releaseSympathetic activationAlertness, energy, heart rate โ†‘
Appetite suppressionMultiple pathwaysReduced food intake

Why it's addictive:

  • Rapid dopamine spike (especially smoking)
  • Short half-life (~2 hours) โ†’ frequent dosing
  • Tolerance develops quickly
  • Withdrawal is uncomfortable (irritability, cravings)
Smoking is One of the Worst Health Choices

The data is unambiguous:

  • Smoking is the leading cause of preventable death globally
  • ~480,000 deaths/year in the U.S. alone
  • 10-year life expectancy reduction on average
  • No safe level of cigarette smoking

If you smoke: The single best thing you can do for your health is quit. Use nicotine replacement therapy (patches, gum) if needed. Vaping is harm reduction if it helps you quit smoking, but not harmless.

If you don't smoke: Don't startโ€”even "social smoking" or "just when drinking" carries significant risk.

Cannabis (Marijuana / THC)โ€‹

ฮ”9-tetrahydrocannabinol (THC) is the primary intoxicating compound:

EffectMechanism
Euphoria / "High"Dopamine modulation in reward pathways
RelaxationGABA modulation; reduced anxiety (at low doses)
Altered perceptionSensory and temporal processing changes
Increased appetiteHypothalamic signaling ("the munchies")
Impaired memoryHippocampal CB1 receptor activation
Impaired coordinationCerebellum and motor cortex effects

Acute effects (during intoxication):

  • Relaxation, euphoria, altered perception
  • Impaired short-term memory
  • Slowed reaction time
  • Impaired driving ability (similar to alcohol)
  • Increased appetite
  • Anxiety or paranoia (especially high doses or sensitive individuals)

๐Ÿ‘€ Signs & Signalsโ€‹

How to Know If Substance Use Is Problematicโ€‹

CategoryHealthy/Informed UseProblematic Use
FrequencyOccasional, deliberateDaily or increasing frequency
MotivationSocial, recreational, or medicalCoping with stress/emotions
ImpactNo negative effects on lifeAffecting work, relationships, health
ControlCan easily stop or reduceDifficulty cutting back
HonestyComfortable discussing with doctorHiding or minimizing use
ConsequencesNone or minimalContinuing despite negative effects
Thought patternsOccasional considerationFrequent thinking about substance
ToleranceStable doseNeeding more for same effect

Specific Substance Signalsโ€‹

Nicotine (Smoking/Vaping):

  • Warning: Any daily smoking; can't go hours without craving
  • Concern: Smoking first thing in morning; smoking alone
  • Action needed: Tried quitting multiple times unsuccessfully

Cannabis:

  • Warning: Daily use; using before noon; using alone habitually
  • Concern: Memory/motivation issues; relationships affected
  • Action needed: Can't stop despite wanting to; life goals suffering

Prescription Medications:

  • Warning: Taking more than prescribed; running out early
  • Concern: Doctor shopping; using without prescription
  • Action needed: Can't function without it; withdrawal when stopping

Red Flags (Any Substance)โ€‹

  • Using to cope with negative emotions
  • Hiding use from others
  • Breaking rules or laws to obtain
  • Relationships damaged because of use
  • Tried and failed to quit or cut back
  • Feel guilty or ashamed about use
  • Physical or mental health declining
  • Using alone more than socially

Positive Indicatorsโ€‹

  • Use is truly occasional (not habitual)
  • No negative impacts on health, work, relationships
  • Can easily take breaks or stop
  • Comfortable being honest with healthcare provider
  • Using for clear, legitimate reasons
  • No escalation over time
Smoking vs. Other Routes

Cannabis can be consumed multiple ways:

MethodOnsetDurationLung RiskDosing Control
Smoking (joint, pipe)Minutes2-4 hoursHigh (combustion)Moderate
Vaporizing (dry herb)Minutes2-4 hoursLower (no combustion)Moderate
Edibles1-2 hours6-8 hoursNonePoor (delayed, intense)
Tinctures / Oils15-45 min4-6 hoursNoneGood
Vaping (concentrates)Minutes2-4 hoursUncertain (additives?)Moderate-Good

Edibles are particularly risky for overdose (non-lethal but very uncomfortable) due to delayed onset and long duration. People often consume more before effects are felt.

Prescription Medicationsโ€‹

Amphetamines (Adderall) and methylphenidate (Ritalin, Concerta):

Legitimate medical use:

  • ADHD: Well-established efficacy; improves focus, impulse control
  • Narcolepsy: Promotes wakefulness

Mechanism:

  • Increase dopamine and norepinephrine in prefrontal cortex
  • Improves attention, focus, executive function

Risks with prescription use:

  • Appetite suppression, weight loss
  • Sleep disruption (if taken too late)
  • Increased heart rate and blood pressure
  • Tolerance and dependence (with chronic use)
  • Potential for misuse

Non-prescribed use (cognitive enhancement in healthy individuals):

  • Does improve focus and alertness short-term
  • Not sustainable long-term (tolerance, side effects)
  • Ethical and legal concerns
  • Risk of dependence and adverse effects

Bottom line: Effective for ADHD under medical supervision. Misuse for "study drugs" is risky and not sustainable.


๐ŸŽฏ Practical Applicationโ€‹

Decision Frameworkโ€‹

Questions to ask yourself:

  1. Why am I using this?

    • Medical need? Recreation? Habit? Coping?
    • Is there a healthier way to meet this need?
  2. What's the risk-benefit ratio?

    • What are the documented benefits?
    • What are the documented harms?
    • Does the benefit justify the risk for my situation?
  3. Is this sustainable long-term?

    • Will I develop tolerance?
    • Are there dependencies or withdrawal issues?
    • What are the long-term health effects?
  4. Am I being honest with myself?

    • Is use occasional or habitual?
    • Am I minimizing risks or exaggerating benefits?
    • Would I be comfortable discussing this with a doctor?
  5. What do I need to know?

    • Understand mechanism of action
    • Know the evidence base
    • Be aware of interactions with other substances or conditions

Special Populationsโ€‹

Substances to avoid entirely during pregnancy/breastfeeding:

SubstanceRiskRecommendation
AlcoholFetal alcohol syndrome, developmental issuesZero tolerance
Nicotine (any form)Developmental issues, low birth weightQuit entirely; use support if needed
Cannabis/THCDevelopmental concerns, low birth weightAvoid completely
Most prescription medsVaries by medicationConsult doctor; many require discontinuation or alternatives

Even substances considered "safe" normally should be evaluated: Consult healthcare provider about all substances, supplements, and medications.


๐Ÿ“ธ What It Looks Likeโ€‹

Healthy Substance Relationshipโ€‹

Informed Decision-Making:

  • Person researches actual evidence before using
  • Considers risk-benefit for their specific situation
  • Discusses with healthcare provider openly
  • Makes deliberate choice, not habitual default

Nicotine (If Using):

  • Using patch/gum for specific performance benefit, time-limited
  • Former smoker using NRT to quit, tapering plan in place
  • Honest about addiction risk; monitoring for dependence

Cannabis (If Using):

  • Occasional recreational use (monthly, not daily)
  • Vaporizing instead of smoking
  • Not driving or using before important responsibilities
  • Comfortable taking breaks without discomfort

Prescription Medications:

  • Taking exactly as prescribed
  • Regular check-ins with prescriber
  • Combining with therapy and lifestyle changes
  • Open communication about side effects and effectiveness

Problematic Useโ€‹

Warning Pattern:

  • Person using daily "just to take the edge off"
  • Doses increasing over time
  • Hiding use from partner or doctor
  • Thinking about next use frequently
  • Canceling plans or missing work due to use
  • Defensive when others express concern

Quitting Successfully:

  • Week 1: Discomfort acknowledged, support system activated
  • Week 2-4: Withdrawal managed, replacement habits forming
  • Month 2-3: Triggers identified and navigated, benefits noticed
  • Month 6+: Cravings rare, health dramatically improved, proud of change

Examples Across Scenariosโ€‹

Medical Cannabis User (Appropriate):

  • Using for chronic pain under doctor supervision
  • Specific dose, specific times
  • Tracks effectiveness and side effects
  • Regular medical check-ins
  • Doesn't drive while intoxicated
  • Honest with healthcare team

Quitting Smoking (Successful Trajectory):

  • Used combination NRT (patch + gum) for 12 weeks
  • Identified triggers (coffee, stress, social)
  • Replaced cigarette breaks with walks
  • Support from quitline and app
  • Slip-ups happened but didn't give up
  • 6 months later: smoke-free, saved money, breathing better

Prescription Stimulant Misuse (Concerning):

  • Started with friend's pills for studying
  • Now "needs" it to focus on anything
  • Taking higher doses than friend prescribed
  • Sleep disrupted, appetite gone
  • Anxiety increasing
  • Defensiveness: "Everyone does this"

๐Ÿš€ Getting Startedโ€‹

4-Week Plan for Substance Assessment & Changeโ€‹

Week 1: Honest Assessment

  • Day 1-2: Track all substance use (type, amount, timing, context)
  • Day 3-4: Identify triggers (stress, boredom, social, habit)
  • Day 5-6: Assess impact (sleep, mood, health, relationships, work)
  • Day 7: Decide: quit, reduce, continue with awareness, or get help?
  • Goal: Clear picture of current use and its effects

Week 2: Plan & Prepare (If Changing)

  • Day 1-2: Set specific goal (quit date, reduction target, boundaries)
  • Day 3-4: Remove substances from home; eliminate easy access
  • Day 5-6: Identify alternatives for each trigger (stress โ†’ walk; boredom โ†’ hobby)
  • Day 7: Tell support people; arrange accountability
  • Goal: Set up environment and support for success

Week 3: Implementation

  • Day 1-3: Begin change; manage withdrawal (medical support if needed)
  • Day 4-5: Use alternatives when triggers arise
  • Day 6-7: Track cravings and what helps (they peak then decline)
  • Goal: Get through hardest days; prove you can do it

Week 4: Establish New Pattern

  • Day 1-3: Notice benefits (sleep, energy, clarity, pride)
  • Day 4-5: Navigate first social situation without substance
  • Day 6-7: Evaluate and adjust plan based on what's working
  • Goal: Build confidence and new identity

Quitting Specific Substancesโ€‹

Nicotine (Smoking):

  1. Set quit date (not "someday")
  2. Get NRT (patch + gum/lozenge combination most effective)
  3. Consider medication (varenicline or bupropion) with doctor
  4. Use quitline or app for support
  5. Expect withdrawal 1-4 weeks; cravings diminish over time
  6. Replace habit (walk instead of smoke break)

Cannabis:

  1. Gradual reduction or cold turkey (not medically dangerous)
  2. Expect sleep disruption, irritability, vivid dreams for 1-2 weeks
  3. Address why you were using (boredom, anxiety, sleep issues)
  4. Find alternative coping strategies
  5. Consider MA (Marijuana Anonymous) if needed
  6. Be patient with yourself

Prescription Medications:

  1. NEVER quit cold turkey (especially benzos or opioidsโ€”dangerous)
  2. Work with prescriber on taper schedule
  3. Gradual reduction over weeks to months
  4. Address underlying condition with alternatives
  5. Support group or therapy during transition
  6. Medical supervision essential

Harm Reduction (If Continuing Use)โ€‹

If not ready to quit:

  • Switch to less harmful route (vape instead of smoke; patch instead of cigarettes)
  • Reduce frequency or dose
  • Set boundaries (time, place, amount limits)
  • Never combine substances
  • Don't use alone
  • Know your source; avoid adulterated products
  • Regular health check-ups
  • Stay honest with yourself about trajectory

๐Ÿ”ง Troubleshootingโ€‹

Common Problems & Solutionsโ€‹

ProblemWhy It HappensWhat to Try
"I keep relapsing"Addiction is powerful; triggers not addressedDon't give upโ€”most people try multiple times; identify specific triggers; get professional help
"Withdrawal is unbearable"Physical dependence; brain chemistry adaptingMedical support (especially for benzos, alcohol); symptoms are temporary; peaks then improves
"Nothing works without it"Brain has adapted to substanceTemporaryโ€”brain will readjust; takes weeks to months; alternative strategies exist
"I only use when stressed"Using as coping mechanismThis is problematic pattern; learn other stress management; address root causes
"Social situations are impossible without it"Psychological dependence; social anxietyPractice sober socializing; it gets easier; address underlying anxiety; support groups help
"I'm fine, everyone does this"Minimization or denialCompare to signs/signals above honestly; ask trusted person for honest feedback
"I can't afford to quit (time/energy)"Fear of withdrawal or changeContinuing has higher cost long-term; plan for easier time (vacation, weekend); support makes it manageable
"My doctor prescribed it so it's fine"Assumption prescription = no riskPrescriptions can lead to dependence; have honest conversation with doctor; advocate for alternatives
"Just one won't hurt"Underestimating addictionFor many substances/people, one leads to pattern returning; complete abstinence often easier than moderation
"I've tried everything"Haven't found right approach yetCombination approaches work best; professional treatment; medication-assisted; different this time

Specific Scenariosโ€‹

If nicotine cravings are intense:

  • Use combination NRT (patch for baseline + gum for breakthrough cravings)
  • Cravings last 3-5 minutesโ€”ride them out
  • Keep hands busy (stress ball, pen, water bottle)
  • Deep breathing exercises
  • Remember they diminish significantly after 2-4 weeks

If you're smoking cannabis daily and want to stop:

  • Expect 1-2 weeks of sleep disruption (will improve)
  • Vivid dreams are normal (REM rebound)
  • Boredom will be intense initiallyโ€”plan activities
  • Exercise helps with mood and sleep
  • If using for anxiety/sleep, address those root causes
  • Consider therapy for underlying issues

If concerned about prescription med dependence:

  • Don't stop abruptly (especially benzosโ€”can be dangerous)
  • Schedule appointment with prescriber
  • Ask about tapering schedule (gradual reduction)
  • Discuss alternatives for underlying condition
  • If doctor dismisses concerns, seek second opinion
  • Support groups exist for prescription drug dependence

If someone expresses concern about your use:

  • Listen without defensiveness (defensiveness itself is a sign)
  • Ask trusted person for honest assessment
  • Consider that outside perspective may see what you don't
  • Denial is powerfulโ€”be willing to examine honestly
  • Getting help is strength, not weakness

โ“ Common Questions (click to expand)

Is vaping safer than smoking?โ€‹

Yes, vaping is significantly less harmful than smoking cigarettesโ€”there's no combustion, so no tar or many of the carcinogens. However, vaping is not harmless:

  • Long-term effects still uncertain (relatively new)
  • Nicotine addiction still occurs
  • Lung irritation and potential injury (especially black market products)

Best use: As smoking cessation tool, not as new habit for non-smokers.

Can I use cannabis safely?โ€‹

Cannabis is not without risks, but many adults use it occasionally without major issues. To reduce harm:

  • Avoid if adolescent, pregnant, or at risk for psychosis
  • Vaporize instead of smoke
  • Use low-moderate THC products (avoid ultra-high THC concentrates)
  • Don't drive while intoxicated
  • Avoid using as coping mechanism for mental health issues
  • Be honest about frequency (daily use increases dependence risk)

Are prescription stimulants okay for studying if I don't have ADHD?โ€‹

Short answer: No. While they may improve focus short-term, there are significant downsides:

  • Tolerance develops (need increasing doses)
  • Dependence risk
  • Side effects (appetite suppression, sleep disruption, anxiety)
  • Ethical and legal issues
  • Not sustainable strategy for academic performance

Better approaches: Sleep, exercise, time management, removing distractions, breaks.

Is CBD actually helpful or just marketing hype?โ€‹

CBD has legitimate, proven uses for specific epilepsy syndromes (FDA-approved). For other claimed benefits (anxiety, pain, sleep):

  • Some preliminary evidence
  • Needs more research
  • Overhyped in consumer market
  • Quality and purity highly variable (unregulated)

If trying CBD: Look for third-party tested products, start low, manage expectations, and don't rely on it as sole treatment for medical conditions.

โš–๏ธ Where Research Disagrees (click to expand)

Cannabis and Cognitionโ€‹

Whether chronic cannabis use causes lasting cognitive impairment in adults is debated. Some studies show deficits persist after cessation; others show recovery. Adolescent use appears more clearly harmful. The magnitude and permanence of adult cognitive effects are uncertain.

Nicotine for Cognitive Enhancementโ€‹

Whether nicotine (in non-smoking forms) is a reasonable cognitive enhancer is debated. Some researchers point to benefits without major harm (if not smoked); others highlight addiction risk and cardiovascular concerns. More research needed on long-term use of pure nicotine.

CBD Efficacy for Anxietyโ€‹

Whether CBD meaningfully reduces anxiety is actively researched. Some studies show benefit; others show placebo-level effects. Quality of studies varies. The hype exceeds the current evidence base.

Cannabis and Mental Health Causalityโ€‹

Whether cannabis use causes mental health issues or people with mental health issues are more likely to use cannabis (reverse causation) is debated. Likely bidirectional, but the magnitude of causal effect is uncertain, especially for depression and anxiety (psychosis link is stronger).

โœ… Quick Reference (click to expand)

Substance Quick Guideโ€‹

SubstanceMain RiskHarm Reduction
Nicotine (smoking)Cancer, COPD, CVDQuit; use NRT; vaping if can't quit
Nicotine (non-smoking)AddictionUse lowest effective dose; time-limit use
CannabisDependence, mental health, cognitionVaporize; low-moderate dose; avoid if adolescent/vulnerable
ADHD stimulants (Rx)Dependence, side effectsUse as prescribed; don't share
BenzodiazepinesAddiction, withdrawalShort-term only; taper under supervision
SSRIsSide effects, withdrawalCombine with therapy; don't stop abruptly

Red Flags for Problematic Useโ€‹

  • Using to cope with emotions or stress
  • Increasing dose/frequency over time
  • Difficulty stopping or reducing
  • Negative impact on work, relationships, health
  • Thinking about substance frequently
  • Using alone or hiding use
  • Continuing despite negative consequences

When to Seek Helpโ€‹

  • Can't quit on your own
  • Experiencing withdrawal symptoms
  • Substance use affecting daily life
  • Mental health worsening
  • Physical health issues related to use
  • Legal or relationship problems

Resources:

  • SAMHSA National Helpline: 1-800-662-4357
  • Your healthcare provider
  • Local addiction services or support groups

๐Ÿ’ก Key Takeawaysโ€‹

Essential Insights
  • Delivery method matters โ€” Nicotine in patches โ‰  cigarettes; vaporizing โ‰  smoking
  • Smoking is uniquely harmful โ€” Leading cause of preventable death; quit if you smoke
  • Cannabis is not harmless โ€” Especially for adolescents and those vulnerable to psychosis
  • Prescription meds have place โ€” Under medical supervision; not for self-treatment or enhancement
  • Addiction is real โ€” Nicotine, benzos, stimulants, cannabis (to lesser extent) are addictive
  • Context matters โ€” Medical use โ‰  recreational use; acute use โ‰  chronic use
  • Know the evidence โ€” Separate marketing hype from scientific evidence
  • Harm reduction is valid โ€” If you use, understand risks and minimize harm
  • Seek help if needed โ€” Addiction and dependence are medical issues, not moral failures

๐Ÿ“š Sources (click to expand)

Nicotine & Smoking:

  • Smoking and mortality โ€” Surgeon General Reports โ€” Tier A
  • E-cigarettes and harm reduction โ€” Public Health England (2015) โ€” Tier B
  • Nicotine cognitive effects โ€” Psychopharmacology (2010) โ€” Tier B

Cannabis:

  • Cannabis and mental health โ€” Lancet Psychiatry (2019) โ€” Tier A
  • Adolescent cannabis use and cognition โ€” JAMA Psychiatry (2022) โ€” Tier A
  • CBD for epilepsy โ€” NEJM (2017) โ€” Tier A
  • Cannabis dependence rates โ€” Addiction (2016) โ€” Tier A

Prescription Medications:

  • ADHD medication efficacy โ€” Cochrane Reviews โ€” Tier A
  • Benzodiazepine risks โ€” BMJ (2014) โ€” Tier A
  • SSRI effectiveness meta-analysis โ€” Lancet (2018) โ€” Tier A

General:

  • National Institute on Drug Abuse (NIDA) โ€” Tier B โ€” Evidence summaries
  • SAMHSA resources โ€” Tier B

See the Central Sources Library for full source details.


๐Ÿ”— Connections to Other Topicsโ€‹


For Mo

When users ask about substance use:

  1. Be non-judgmental โ€” Provide information for informed decisions, not moral judgments
  2. Distinguish context โ€” Medical use vs. recreational; route of administration matters
  3. Emphasize evidence โ€” Separate hype from science; acknowledge uncertainty where it exists
  4. Harm reduction is valid โ€” If someone is using, help them reduce risk
  5. Know when to escalate โ€” Addiction and dependence require professional help

Example: User asks about using Adderall for studying โ†’ explain risks (tolerance, dependence, not sustainable), suggest evidence-based alternatives (sleep, exercise, time management), acknowledge that prescription use for ADHD is appropriate.