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Support with

quitting chemsex

Especially for men who want to take a break from chemsex, quit, or stay sober, we organise group meetings. You can come here for mutual support and to exchange experiences. 

Would you like to participate in a meeting? Then send an e-mail to Registration is required due to the maximum number of participants per evening. The meeting schedule of 2024 can be found here.

The meetings at Mainline’s office: Frederik Hendrikstraat 111 in Amsterdam.


Meetings in Dutch

The Dutch-language group meetings take place on the first and third Wednesday of each month, from 07:30 to 09:00 pm.

Meetings in English

Group meetings for English speakers take place on the second and fourth Wednesday of each month, from 07:30 to 09:00 pm.

The chemsex team

Are you looking for support, information, advice, or help regarding chemsex? Our chemsex team is here for you. We offer individual consultations, information, advice and can refer you to appropriate help if necessary. 

Please do not hesitate to contact us. You can reach our chemsex team via email at Or contact us by phone at any of the numbers below. We can also be reached on Whatsapp.  

Leon: 06 11 16 33 41

Get in contact with Leon Knoops

Sultan: 06 38 21 62 50

Get in contact with Sultan Baghdadi

Want to know more about chemsex?