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Table 2 Recent month drug abuse in patient group (number of patients)

From: Cognitive function during early abstinence from opioid dependence: a comparison to age, gender, and verbal intelligence matched controls

 

Main opioid abused

 

Buprenorphine 10

Heroin 5

Opioid only

 

1

   Opioid with occasional benzodiazepine

3

 

   Opioid with frequent benzodiazepine

6

2

   Opioid with frequent benzodiazepine and occasional cannabis

 

1

Opioid use with benzodiazepines

  

Opioid with frequent cannabis without other substances of abuse

1

1

  1. Note: Occasional = five to ten days of abuse. Frequent = more than ten days of abuse. All who had abused mainly heroin within recent month did it were intravenously. All but two abused buprenorphine intravenously.