Searcher Online Survey

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SEARCHER Online Survey


Have you ever used substances to influence sex?

Alcohol, Cannabis, Poppers, "G", Crystal Meth, "Tina", Special K

Then: Take part in our survey! Your opinion is important to us!


In 5 to 15 minutes you can answer the survey on your mobile phone.

We would be very pleased if you would support us in our project and thus contribute to improving care.

Searcher Online Survey

Why are we doing this study?


Increased use of substances in sexual context poses a risk of unknown magnitude. Chemsex has already been defined as a risk for sexually transmitted infections (STIs) as well as for the development of mental illness.


The fact that substance use and sex work as syndemic factors correlate with STI and mental illness has already been well defined in recent decades. A still largely unknown topic is the influence of sexualized substance use on the previously existing problem. There are no studies available on this subject. 

Chemsex as a distinct phenomenon has only been defined in the last decade and is demographically and behaviorally distinct from other forms of illicit substance use.

In previous surveys and qualitative studies on chemsex, some participants have signaled being involved in sex work. In practice, it has also been observed that a relevant proportion of chemsex users are involved, but this has not yet been clearly defined.


In addition, in previous work, a connection could be observed between loneliness and readiness to participate in chemsex. For the German-speaking area, however, there is no satisfactory data on this topic either.


The aim of this project is to investigate the connection between prostitution and sexualized substance use.

This project investigates: How loneliness and certain socio-demographic factors correlate with patterns of substance use.


Counseling and Support

We are happy to help you find an accessible counseling center or appropriate therapy near you on the following subjects:

  • Substance use

  • Sexuality

  • Chemsex

  • Prostitution

  • Mental health

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Counselling Centers:
  • Drug Counseling Schwaben: TDrogenhilfe Schwaben provides counseling in the area of "illegal drugs" and offers addiction prevention counseling. Our services support all people who are at risk of becoming dependent on illegal drugs or already are, as well as people from their entire social environment. In our addiction prevention activities, we focus on health promotion in schools and workplaces. We are covering the city of Augsburg and the neighboring counties of Augsburg and Aichach-Friedberg.

    Phone: +49 (0) 821 34390-10

  • AIDSwork Center in Schwaben: The ZAS offers a protected space in which the observance of confidentiality is a matter of course. Furthermore, the ZAS is a social space where encounters become possible and exchange can take place. The ZAS offers free space in which each person is respected with his or her uniqueness and experiences appreciation. The team is committed to diversity and against discrimination of any kind, counteracts stigmatization and supports people with HIV and AIDS.

    Phone: +49 (0) 821 158081


Assisted Living:


  • Assisted Living in Augsburg: Assisted living Augsburg: Those seeking help can take up assisted living in their own apartment or in our abstinent living community (Nachsorge-WG). Offer: Personal reference person as contact person. Discussions to identify life goals. Guidance in identifying problems and solving them. Support in organizing everyday life. Group and free time activities. Help with work and professional integration. Living in an abstinent living community. Individual planning of the future and support in its implementation.

    Website:   Betreutes Einzelwohnen Augsburg • Condrobs e.V.
    Adress: Beim Schnarrbrunnen 4, 86150 Augsburg 
    Phone: +49 (0) 821 50890693


Counselling Centers:
  • Drug Counselling Center Munich: The Munich Drug Counseling Center is Condrobs' largest counseling center and has been responsible for the city and district of Munich since 1972. In addition to counseling in individual, couple and family sessions, there are also regular group programs for those affected and their relatives. For example, on the topic of cannabis, relapse prevention, parent/child or KISS.

    Website:  Drogenberatung München • Condrobs e.V. 
    Adress: Konradstraße 2, 80801  München
    Phone: +49 (0) 89 3883766



  • Mimikry: Mimikry is a counseling center for active and former sex workers. We offer information and advice on sex work and all other topics and problems where you need support. Our offer is free of charge and anonymous. If you wish, we can organize an interpreter. You can come to us regardless of your nationality and residence status.

    Adress: Dreimühlenstr. 1, 80469 München
    Phone: (089) 72 59 083 


  • Chemsex Counselling in Sub e.V.: Chemsex counseling is a professional counseling service of the addiction support for people who have or had chemsex, their relatives, friends and also professionals. We advise, accompany and help people who have questions about chemsex. No matter if chemsex has become a problem, if addiction plays a role or if there are simply questions about the topic: We are non-judgmental, anonymous and free of charge for all questions around sexuality and substance use there! We offer individual and couples counseling. In addition, the "Chemsex-Control-Group", a self-help group, meets at Sub e.V. every two weeks.

    Adress: Müllerstraße 14
    Phone: +49 (0) 89 856346401


Counselling Center:
  • Lilith a non-profit, acceptance-oriented, low-threshold and feminist drug assistance organization in Nuremberg. Our primary target groups include drug-using women and children of drug users. We offer the following standard services free of charge: Survival assistance (food, hygiene, clothing, safer use items), socio-pedagogical counseling, outpatient therapy, contact (women's café), street work, crisis intervention, mediation, outpatient assisted living (23 places) and work projects (16 jobs and qualification measures), groups, play and free time activities. Annually, we care for about 750 women and 250 children.

    Adress: Bogenstraße 30, 90459 Nuremberg
    Phone: +49 (0) 911 472218

  • Mudra: mudra works on the basis of an accepting approach according to the principles of target group , lifeworld , needs and resource orientation. A wide range of help and support services are available, covering almost all areas of life of drug users. mudra thus has a unique position in the Nuremberg metropolitan region and is a recognized drug work organization nationwide.

    Adress: Ludwigstraße 61, 90402 Nuremberg
    Phone: +49 (0) 911 8150100

About Us

The research focus of our group, which is divided into two locations (University Medical Center Augsburg and LMU Munich), is on the topic of substance-related dependence diseases. Here we are particularly concerned with the topic of tobacco dependence. In addition, we are also concerned primarily with the interplay between sexuality and substance use, whereby "chemsex" - a subform of sexualized substance use - in which primarily men who have sex with men (MSM) take certain substances (GBL/GHB, methamphetamine and mephedrone) in a sexual context. This is associated with significant risks to physical and mental health.


Research Groups


  • Univ. Prof. Dr. med. Alkomiet Hasan
  • Dr. med. Marcus Gertzen
  • Douglas Silva Leao
  • Naiiri Ghazari (M.Sc.)
  • Theresa Halms (M.A.)
  • Peter Martl
  • PD Dr. med Tobias Rüther
  • Dr. med. Andrea Rabenstein
  • Cornelia Rosenberger
  • Moritz Strasburger
  • Solveig Gernun
  • Johanna Schwarz
  • Sinan Karcher
  • Hanna Hentschel


Visit our website:




Mr. Douglas Silva Leao 


Department of Psychiatry, Psychotherapy and Psychosomatics of the University of Augsburg

Geschwister-Schönert-Strasse 1

86156 Augsburg
Tel: +49 (0) 821 4803-4185