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Dihydrofolate Reductase Inhibitor Antimalarial drugs compared

Compare all 2 Dihydrofolate Reductase Inhibitor Antimalarial drugs side by side, used for conditions such as toxoplasmosis, malaria, falciparum, aids-related opportunistic infections. They share one FDA-defined mechanism but differ in approved uses, prescription status, brand-vs-generic options, price, and FDA recall-safety record — which our independent rating scores.

1 of 2 drugs in this class carry a pharmaranks safety score, ranging 66–66 out of 100 — computed from FDA recall records, not from reviews.

Rated against independent sources·Last updated June 7, 2026·How we rate

Full ranking · 2 drugs

  1. 1

    pyrimethamine

    Pyrimethamine

    66/100
  2. 2

    daraprim

    Pyrimethamine

    New

Frequently asked questions

What is the Dihydrofolate Reductase Inhibitor Antimalarial drug class?

Dihydrofolate Reductase Inhibitor Antimalarial is an FDA Established Pharmacologic Class (EPC) — a group of drugs that share a mechanism of action. pharmaranks lists 2 Dihydrofolate Reductase Inhibitor Antimalarial products, each independently rated.

Are all Dihydrofolate Reductase Inhibitor Antimalarial drugs the same?

No. Dihydrofolate Reductase Inhibitor Antimalarial drugs share the same core mechanism — that is why they sit in one FDA class — but they differ in their approved uses, available forms, whether they are prescription or over-the-counter, brand-vs-generic options and price, and their FDA recall-safety record.

What conditions do Dihydrofolate Reductase Inhibitor Antimalarial drugs treat?

Per NIH RxClass drug-classification data, Dihydrofolate Reductase Inhibitor Antimalarial drugs are used for conditions including toxoplasmosis, malaria, falciparum, aids-related opportunistic infections.

Sources: the Dihydrofolate Reductase Inhibitor Antimalarial class definition and its member drugs come from the U.S. NLM RxClass (Established Pharmacologic Class). Ratings are pharmaranks’ independent FDA recall-safety analysis.