 In addition to containing powerful opioids, what makes gray death an extremely dangerous drug is the fact that the constituent drugs' identities, their overall ratios in the product, and their uneven distribution within the productare completely unknown to the user. This means that the user cannot predict what dose to safely take; even two identical doses by mass may contain more or less of an unknown substance due to uneven physical distribution, as seen with heroin and fentanyl mixes. Opioid addicts tend to be more susceptible to the drug .
<clarity>  In addition to containing powerful opioids, what makes gray death an extremely dangerous drug is the fact that the constituent drugs' identities, their overall ratios in the product, and their uneven distribution within the productare completely unknown to the user. This means that the user cannot predict what dose to safely take; even two identical doses by mass may contain more or less of an unknown substance due to uneven physical distribution, as seen with heroin and fentanyl mixes. Opioid addicts tend to be more susceptible to the drug .
 As with other illicit narcotics, gray death carries a higher risk of serious adverse effects than prescribed opioids due to the unknown and inconsistent composition of the product .