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Advantages and disadvantages for inhalers
| Device |
Advantages |
Disadvantages |
| Metered dose inhalers. |
- Portable and convenient.
- Non breath activated.
- More cost effective than dry powder inhaler.
- No preparation.
|
- Patient co-ordination essential.
- High pharyngeal deposition.
- Difficult to determine remaining doses.
|
| Breath actuated aerosol inhalers. |
- Portable.
- Convenient.
- No co-ordination or high flow rate required.
|
|
| Dry powder devices. |
- Portable and compact.
- Propellant not required.
- Patient co-ordination not required.
- No need for spacer.
- Most have dose counters.
|
- Difficult to deliver in high doses?
- Flow dependent.
- Some require assembly.
- More expensive than metered dose inhaler.
- Cannot use with endotracheal or tracheostomy tube.
|
Note: the same drug or a combination of drugs can be given in a different type of inhaler e.g. Symbicort MDI and Symbicort Turbohaler.
