The Thai pharma market, one of the largest in the ASEAN region, stood at USD 5 billion in size in 2016. Thailand projects that the market will grow to USD 7 billion in 2021 and USD 9.5 billion by 2026.
Thailand’s healthcare expenditure is projected to rise from USD 24.1 billion in 2016 to USD 45.5 billion by 2026,
In general, there are no specific regulations related to the pricing of medicines.
Medicine prices are regulated only when they are one of the approximately 1500 drugs on the National List of Essential Drugs (NLED).
Under the control of the Ministry of Commerce, drugs on the NLED are subject to a median price policy. Private hospitals and drug stores are free to set their own prices for the drugs they sell, but the price must not exceed the sticker price – the maximum price set by the distributor.

Trastuzumab sample data and pricing May 2020.