Table 11 The impact of prescription drug charges on the use of essential and non-essential medicines
| Variable | Use of essential medicines | Use of non-essential medicines | Studies |
|---|---|---|---|
| Co-payment | - | - | McManus et al. [165] (AU, NS, TD, R) |
| Co-payment | 0 | Brian and Gibbens [67] (US, ES, CD, NR) | |
| Co-insurance | - | - | Foxman et al. [172] (US, ES, CD, R) |
| Change from | |||
| co-payment to co-insurance and annual maximum | - | Tamblyn et al. [72] (CA, NS, TD, R) | |
| Prescription limit | - | Fortress et al. [190] (US, NS, PD, R); Martin and McMillan [173] (US, NS, TD, R); Soumerai et al. [62] (US, NS, TD, R); Soumerai et al. [38] (US, NS, TD, R) | |
| Prescription limit | - | Soumerai et al. [62] (US, NS, TD, R) |