Trimethoprim is an antifolate antibacterial agent that inhibits bacterial dihydrofolate reductase (DHFR), a critical enzyme that catalyzes the formation of tetrahydrofolic acid (THF) - in doing so, it prevents the synthesis of bacterial DNA and ultimately continued bacterial survival.[L11893] Trimethoprim is often used in combination with [sulfamethoxazole] due to their complementary and synergistic mechanisms but may be used as a monotherapy in the treatment and/or prophylaxis of urinary tract infections.[L11893,L11830] It is structurally and chemically related to [pyrimethamine], another antifolate antimicrobial used in the treatment of plasmodial infections.[T707]
Sulfamethoxazole and Trimethoprim for Injection, USP
Protrin Tab
Bactrim
Trimethoprim Tablets
Trisulfa Tab
Proloprim
sulfamethoxazole-trimethoprim (SMZ)
Bactrim Roche Tab
Sulfatrim
Primsol
Polymyxin B Sulfate and Trimethoprim Sulfate
Polytrim Ophthalmic Solution
Proloprim 200 Tab 200mg
PMS-polytrimethoprim
Septra DS Tablets
SULFAMETHOXAZOLE and TRIMETHOPRIM
Septra DS
Proloprim Tab 100mg
Teva-trimel
Sulfatrim DS
TRIMPEX trimethoprim hydrochloride
Trisulfa S Suspension
Sulfamethoxazole and Trimethoprim (Double Strength)
Riva-sep DS
Septra
Trisulfa DS Tab
Sulfamethoxazole and Trimethoprim Tablets
Polytrim
Bactrim Roche Inj
Nu-cotrimox-DS Tab 800/160mg
Septra Grape
Bactrim DS Roche Tab
Sulfameth/Trimeth-DS
Bactrim DS
Coptin Oral Suspension
Bactrim Roche Suspension Paediatric
Coptin Tab
Roubac Tab 160/800
Sulfamethoxazole and Trimethoprim Double Strength
Sulfatrim Pediatric
Septra Pediatric Suspension
PrimSol
Nu-cotrimox Sus 40/8mg/ml
Apo-sulfatrim Oral Suspension
Polymyxin B Sulfate and Trimethoprim
Sandoz Polytrimethoprim
Sulfamethoxazole and Trimethoprim DS
POLYMYXIN B SULFATE and TRIMETHOPRIM SULFATE
Teva-trimel DS
Trimethoprim sulfate and Polymyxin B sulfate
Nu-cotrimox Tab 400/80mg
Sulfamethox-TMP DS
Roubac Tab 80/400
Sulfamethoxazole and Trimethoprim
Trimethoprim
Septra Injection
Sulfamethoxazole and Trimethoprim Injection, BP
Protrin Df Tab
Indication
As a monotherapy, trimethoprim is indicated for the treatment of acute episodes of uncomplicated urinary tract infections caused by susceptible bacteria, including _E. coli._, _K. pneumoniae_, _Enterobacter spp._, _P. mirabilis_, and coagulase-negative _Staphylococcus_ species.[L11893,L11890] In various formulations in combination with [sulfamethoxazole], trimethoprim is indicated for the following infections caused by bacteria with documented susceptibility: urinary tract infections, acute otitis media in pediatric patients (when clinically indicated), acute exacerbations of chronic bronchitis in adults, enteritis caused by susceptible _Shigella_, prophylaxis and treatment of _Pneumocystis jiroveci_ pneumonia, and travelers' diarrhea caused by enterotoxigenic _E. coli_.[L11830,L11863] Trimethoprim is available as an ophthalmic solution in combination with [polymyxin B] for the treatment of acute bacterial conjunctivitis, blepharitis, and blepharoconjunctivitis caused by susceptible bacteria.[L11887]
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison
T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS.
Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682