Although I think it is hard to get firm numbers on this, a lot of other drugs are being cut with Fentanyl or outright substituted, including comparatively benig

Although I think it is hard to get firm numbers on this, a lot of other drugs are being cut with Fentanyl or outright substituted, including comparatively benign drugs like Xanax. There is a growing movement to classify a lot of fentanyl drug deaths as poisoning since it wasn't that the person took too much, it was that they were unaware that they were taking it at all. (Source: lost a daughter to what she thought was Xanax that was pure Fentanyl)