| |
For certain pharmaceutical
preparations it should be possible to divide the table with one
hand.
These tablets apply a certain “principle of
divisibility”, but also come in different designs.
Examples of single-hand divisible tablets:
 |
 |
A cavity
on one side makes it possible to divide the tablet with one
hand.
This cavity is formed from a deep score across one side of the
tablet at an angle of 120-150°.
An additional small, sharp-edged score cut into the band helps
breakage.
As shown in figure a) the flanks of the large score take the
force of the finger and apply a torque (break moment) about
the almost punctiform contact area of the tablet. |
| |
 |
| |
As shown in diagram
b) it is also possible to divide the tablet when placed upside
down.
In this instance, the force is applied towards the centre
of the cavity and creates torque about the two contact points,
which causes breakage.
|
| |
To divide the tablet, it should be placed on a surface as
shown in example a). Placing the tablet as in example b) could
cause additional breakage loss because the fragments hit each
other.
The figure-of-eight-shaped tablets in example
c) (scored and unscored) have a cavity on both sides, so the
tablet can be placed on either side to divide it.
|
| |
 |
|
