Global pyrimethamine market is estimated to be valued at USD 1.28 Bn in 2025 and is expected to exhibit a CAGR of 5.6% during the forecast period (2025-2032). Pyrimethamine is an antifolate drug used for the treatment of protozoan infections such as malaria and toxoplasmosis. It works by inhibiting dihydrofolate reductase (DHFR), an enzyme involved in folate synthesis. This prevents protozoan parasites from producing essential folate and halts their growth. Pyrimethamine is often used in combination with other antimalarial drugs to enhance efficacy and reduce resistance development. Resistance to pyrimethamine has emerged due to mutations in the DHFR gene among Plasmodium species, complicating treatment strategies. Consequently, ongoing research focuses on developing new inhibitors targeting DHFR or related pathways to combat resistant strains effectively:
Market Dynamics:
The pyrimethamine market is driven by the growing prevalence of malaria in tropical and subtropical regions globally. As per the WHO, in December 2025, the estimated number of malaria deaths stood at 608,000 in 2022 compared to 610,000 in 2021. Increasing anti-malarial drug resistance is also boosting the demand for alternative treatment options like pyrimethamine. However, stringent regulatory approval processes for new drugs and the need for close medical supervision due to potential side effects can hamper market growth. The market also presents opportunities for combinations with other antimalarials to expand treatment applications and overcome resistance. Entry of newer generic manufacturers especially in developing countries can help improve the accessibility of pyrimethamine.
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