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. 2019 Feb 5;22(4):270–277. doi: 10.1093/ijnp/pyz007

Table 2.

Z-Drug Misuse-, Abuse-, Dependence-, Withdrawal-, and Overdose-Related ADRs; PRR Computation

Zaleplon ADRs No of reactions ADRs Proportion of zaleplon ADRs
Drug abuser (A1) + drug diversion (A2) + drug use disorder (A3) + intentional product use issue (A4) + intentional product misuse (A5) + prescription drug used without prescription (A6) + product use in unapproved indication (A7) + product use issue (A8) + substance abuser (A9) + substance use disorder (A10) 367 0.089
Dependence (A11) 5 0.001
Withdrawal syndrome (A12) + drug withdrawal syndrome (A13) + drug withdrawal headache (A14) + drug withdrawal (A15) 89 0.023
Intentional overdose (A16) + overdose (A17) 76 0.019
Other adverse events (B) 3733 0.868
Total 4270 1.000
Zopiclone ADRs No of reactions ADRs Proportion of zopiclone ADRs
Drug abuser (C1) + drug diversion (C2) + drug use disorder (C3) + intentional product use issue (C4) + intentional product misuse (C5) + prescription drug used without prescription (C6) + product use in unapproved indication (C7) + product use issue (C8) + substance abuser (C9) + substance use disorder (C10) 2507 0.043
Dependence (C11) 138 0.002
Withdrawal syndrome (C12) + drug withdrawal syndrome (C13) + drug withdrawal headache (C14) + drug withdrawal (C15) 718 0.013
Intentional overdose (C16) + overdose (C17) 5920 0.096
Other adverse events (D) 55 857 0.846
Total 65 140 1.000
Zolpidem ADRs No of reactions ADRs Proportion of zolpidem ADRs
Drug abuser (E1) + drug diversion (E2) + drug use disorder (E2) + intentional product use issue (E4) + intentional product misuse (E5) + prescription drug used without prescription (E6) + product use in unapproved indication (E7) + product use issue (E8) + substance abuser (E9) + substance use disorder (E10) 9744 0.050
Dependence (E11) 423 0.002
Withdrawal syndrome (E12) + drug withdrawal syndrome (E13) + drug withdrawal headache (E14) + drug withdrawal (E15) 2433 0.018
Intentional overdose (E16) + overdose (E17) 10 820 0.056
Other adverse events (F) 182 895 0.874
Total 206 315 1.000

Abbreviations: ADR, adverse drug reaction; PRR, proportional reporting ratio.