Drug tolerance: Drug tolerance takes place when a shopper has been getting a certain medication, for example an opioid drug, for a prolonged timeframe and, due to this prolonged administration, the client wants increasing doses from the medication to create the therapeutic effect. NCSBN has delivered information about NGN at https://miloaejhm.csublogs.com/34242429/nursing-exam-taking-service-things-to-know-before-you-buy