Sulfonamides

Effect Antibacterial Bakeriostatic Antiparasitic against protozoa Mechanism of action Sulfonamides inhibit the synthesis of folic acid in microorganisms. They are structural analogues (antimetabolites) of the natural substrate p-aminobenzoic acid and competitively displace it. Trimethoprim, used in combination with sulfamethoxazole, has a synergistic effect. Indications Bacterial infectious diseases caused by: Streptococcus Pneumococcus Actinomycetes Nocardia, e.g. nocaridosis … Sulfonamides

Pyrimethamine

Products Pyrimethamine is commercially available in tablet form (Daraprim). The combination Fansidar (+ sulfadoxine) is off the market (malaria). Structure and properties Pyrimethamine (C12H13ClN4, Mr = 248.7 g/mol) is a diaminopyrimidine. It exists as a white crystalline powder or as colorless crystals and is practically insoluble in water. Effects Pyrimethamine (ATC P01BD01) has antiparasitic properties. … Pyrimethamine

Antimalarials

Effects Antiparasitic against plasmodia. Indications Malaria Malaria prophylaxis Also for the treatment of rheumatic diseases, lupus erythematosus. Off-label: some antimalarials such as quinine and chloroquine are used off-label to treat calf cramps. Active ingredients Aminoquinolines: Amodiaquine Chloroquine (Nivaquine, out of commerce). Hydroxychloroquine (Plaquenil) Mepacrine Pamaquin Piperaquine Primaquine Tafenoquin (crinoline) Biguanides: Proguanil (Malarone + Atovaquone). Cycloguanilembonate … Antimalarials