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
Sulfatrim DS
SULFAMETHOXAZOLE and TRIMETHOPRIM
Nu-cotrimox-DS Tab 800/160mg
Protrin Df Tab
Septra DS
Trimethoprim sulfate and Polymyxin B sulfate
Septra Grape
Sulfatrim Pediatric
POLYMYXIN B SULFATE and TRIMETHOPRIM SULFATE
Sulfamethoxazole and Trimethoprim Double Strength
Trisulfa DS Tab
Roubac Tab 80/400
Riva-sep DS
Proloprim Tab 100mg
Bactrim DS
Teva-trimel
Septra DS Tablets
TRIMPEX trimethoprim hydrochloride
Sulfamethoxazole and Trimethoprim Injection, BP
PrimSol
Bactrim Roche Tab
Coptin Tab
Sulfamethox-TMP DS
Sandoz Polytrimethoprim
Trimethoprim
Polymyxin B Sulfate and Trimethoprim Sulfate
Sulfamethoxazole and Trimethoprim (Double Strength)
SULFAMETHOXAZOLE AND TRIMETHOPRIM double strength
Proloprim
Trisulfa Tab
Trisulfa S Suspension
Coptin Oral Suspension
Polytrim
Polymyxin B Sulfate and Trimethoprim
Nu-cotrimox Sus 40/8mg/ml
Polytrim Ophthalmic Solution
sulfamethoxazole-trimethoprim (SMZ)
Nu-cotrimox Tab 400/80mg
Sulfameth/Trimeth-DS
Bactrim Roche Suspension Paediatric
SulfatrimTM Pediatric Suspension
Sulfamethoxazole and Trimethoprim Tablets
Bactrim DS Roche Tab
Roubac Tab 160/800
Sulfamethoxazole and Trimethoprim
Sulfatrim
Bactrim
Trimethoprim Tablets
Septra Pediatric Suspension
Protrin Tab
Septra Injection
Sulfamethoxazole and Trimethoprim DS
Teva-trimel DS
Septra
Apo-sulfatrim Oral Suspension
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