Understanding What Are the Four Main Categories of Medicines?
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4 min read
In 2021, over-the-counter (OTC) medicine sales in the UK surpassed £2.5 billion, illustrating their critical role in self-care and easy accessibility. To grasp the full landscape of pharmaceuticals, it is essential to understand **what are the four main categories of medicines?**, which are most commonly defined by their level of legal control and availability to the public.