Prevention is a central component in dealing with drug use. It helps to reduce risks, identify problems at an early stage and provide appropriate support to those affected. This area offers you neutral, fact-based and practical advice, without moral judgement – suitable for parents, schools, employers and private individuals.
1. What does prevention mean for drugs?
Prevention includes all measures that contribute:
- Reduce consumption risks
- to avoid consequential damage
- Recognizing problem behavior early on
- To support those affected
- Facilitate conversations
- Enable informed decisions
What prevention is not:
- Control or monitoring
- Punishment
- moral pressure
The aim is protection, orientation and support.
2. Early detection – warning signs to be aware of
Individual indications do not automatically mean drug use.
The overall picture is decisive.
Possible physical signs
- unusual tiredness / exhaustion
- dilated or constricted pupils
- Loss of appetite or intense hunger
- Trembling, sweating
- unexplained mood swings
Possible psychological/social cues
- Withdrawal
- changed friends
- Loss of performance
- Stealthy behavior
- frequent „inexplicable“ absences
Possible material clues
- unknown pills / powders
- eye-catching packaging
- Smoking paraphernalia
- Sprays / Filters / Papers
Important: No hasty suspicions → conversation and support are in the foreground.
3. Conversation with those affected – how do you start?
Do’s
✔ remain✔
calm Understanding instead of accusations
✔ Name
✔ concrete observations Ask open questions Talk
✔ at eye level✔
Offer
✔ help Involve professional support if necessary
Don’ts
✘ Pressure, threats or moral tone
✘ Making
diagnoses✘ Having
a conversation under stress✘ „All or nothing“ demands
✘ Public confrontations
The goal is always: to create a basis of trust – not escalation.
4. Prevention for adolescents – what parents should pay attention to
Adolescents are particularly susceptible to:
- Peer pressure
- Curiosity
- Risk assessment without experience
- Stress / School Strain
What parents should pay attention to:
- Show interest in everyday life
- common rules for exits
- Addressing motivation and pressure situations
- Keep an eye on digital communication and friends
- talk about drugs without taboos
- Prioritise support instead of sanctions
A drug test can be a tool, but not a substitute for conversations.
5. Prevention in the workplace
The following applies to employers in Switzerland:
✔ Prevention before sanctions,
✔ security before controls
✔, discussions before measures
Important elements:
- Clear internal guidelines
- Training for safety-related professions
- Internal confidants
- Awareness of mixed use (alcohol + drugs)
- fair, transparent communication
- Respectful handling of tests and results
Drug tests are useful for:
- High security relevance
- reasonable suspicion
- prevention programs in high-risk industries
Prevention in schools and clubs
Schools and youth organisations are increasingly recognising:
- High social media influence
- Low-threshold availability
- new synthetic substances
- increasing pressure to perform
Important preventive measures:
- Workshops & Awareness Programs
- Involving school psychological services
- Self-esteem strengthening & stress management
- Clear rules and framework conditions
- Cooperation with parents
7. How drug testing can be used as part of prevention
Drug tests are not a solution in themselves, but they can help:
- To provide clarity
- Early detection of consumption
- Facilitate conversations
- prevention of relapse
- to give commitment to young people
- Reduce uncertainty in case of suspicion
Important: „Test & Interview“ instead of „Test & Punishment“.
Counselling centres and support services in Switzerland
The following agencies offer neutral help:
Addiction Switzerland
Information, prevention, counselling
→ suchtschweiz.ch
SafeZone (anonymous & free)
Online advice from specialists
→ safezone.ch
Addiction counselling centres of the cantons
Each commune / canton offers its own services.
School Psychology Services
The first point of contact for young people.
General Practitioner / Medical Professionals
Especially in the case of physical or psychological symptoms.
Youth & Family Counselling
Neutral, low-threshold, confidential.
9. When should you seek professional help?
If the following occurs:
- Severe drop in performance
- Breaking off social contacts
- Repeated risky situations
- aggressive reactions
- Loss of control
- typical withdrawal symptoms
- Mixed consumption
- Suspected Hazardous Substances (NPS)
- Self-endangerment or endangerment of others
Early help always works better than late intervention.
10. Related topics
- THC Detectability
- Use urine test correctly
- Saliva test explained
- Common Drug Test Mistakes
- Screening vs. confirmatory analysis
- Drug Test Types at a Glance
- Duration of detection of substances
- Drugs in road traffic (CH)
- Drug testing in the workplace (CH)
Prevention does not mean control or sanctions, but protection, orientation and support.
Through early detection, open discussions and expert offers of help, risks can be reduced and those affected can be effectively supported.
Drug tests can be a helpful tool in this regard – but always as part of an appreciative and responsible prevention strategy.


