Why a big strip used for only one tablet?

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You will have seen it at a medical shop. A big strip comes with only one tablet. Why is only one tablet available on it? Today we will know about it.

There are some reason 
1. The manufacturing cost of tablets is high. To save the tablet only one tablet pack in strips.
2. To provide all details of the tablet on strip the strip will be bigger in size.
3. These types of tablets are taken every week. So it is easy to learn.