Examples: bulk parenteral solutions, insulins, patches
The unit of presentation usually either uses the same word (even though it is a different concept) as the (package item) container, or the (package item) container is a more granular concept and the unit of presentation uses a less granular term. However, although presentation strength is expressed as "per one unit of presentation", the clinically relevant strength is the concentration strength, as almost all are used in individually calculated and variable amounts.
The unit of presentation is likely to be useful in description of the medicinal product concept at some level; insulin presented in a multi-dose vial will be used/administered differently from insulin presented in a cartridge for use within a "pen device".
Unit of presentation
Cartridge
The vial "bounds" the liquid
[Pack size]
5 cartridges in a sleeve,1 sleeve in the box
Precise active ingredient
insulin soluble human
Unit of presentation
Bag
The bag "bounds" the liquid
[Pack size]
1 bag in a sterile pouch,10 pouches in the box
Unit of presentation
Patch
The patch "bounds" the dose form that delivers the medication
[Pack size]
1 patch in sachet, 30 sachets in the box

Basis of strength substance
insulin soluble human
Presentation strength (logical)
150 units per volume contained in the unit of presentation
The amount of the dose form bounded in the unit of presentation
Presentation strength
150 units per 1.5 mL
Not a clinically safe expression of strength
Concentration strength
100 units per 1 mL
Precise active ingredient
sodium chloride
Basis of strength substance
sodium chloride
Presentation strength (logical)
450 mg per volume contained in the unit of presentation
The amount of the dose form bounded in the unit of presentation
Presentation strength
450 mg per 500 mL
Not a clinically safe expression of strength
Concentration strength
9 mg per 1 mL
Synonym: 0.9% w/v
Precise active ingredient
rivastigmine
Basis of strength substance
rivastigmine
Presentation strength (logical)
9 g per volume contained in the unit of presentation
The amount of the dose form bounded in the unit of presentation
Presentation strength
9 g per (5cm) patch
Not a clinically safe expression of strength
Concentration strength
4.6 mg per 24 hours
This is a "rate" strength


