It seems that people are affected by the shape and colour of the pills they take.
Aside from this placebo effect, it seems to me that a major safety benefit would be derived from having tablets made to represent the bit of the body they were intended to heal.
It would be straightforward to create a mould in the shape of a small, iconic head for headache pills or one shaped like a stomach for indigestion, like a heart for angina…etc
This might lessen the confusion which people have between all those similar pills and also help everyone, including blind people, to avoid taking inappropriate medicine.
