I wouldn't say for all of Europe. There are countries where it's a problem.
In Switzerland, it hasn't been a problem yet. We have nitazenes just arriving on the scene, which are similarly potent to fentanyl or more potent. We will have to adjust our treatment.
This is what I pointed out in my last comment. I think that where there's no evidence, you have to collect evidence. This is something that the Swiss did as well. They did a large study on heroin-assisted treatment, which showed that it worked and was cost-effective.
This is probably something that we would do if the nitazenes arrive on a larger scale. It's that we would start treating with higher potency opioids like fentanyl, because we know that methadone is not a good medication for many patients, and patients need to be able to choose from a variety of available substances. Heroin—pharmaceutical heroin—is among them and it's very strong. You can inject it, but for patients with fentanyl use, maybe even this is not enough and we have to provide fentanyl for these patients in the context of a treatment.