Comparative Pharmacology
Head-to-head clinical analysis: TECFIDERA versus TERIFLUNOMIDE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: TECFIDERA versus TERIFLUNOMIDE.
TECFIDERA vs TERIFLUNOMIDE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Dimethyl fumarate (DMF) is a methyl ester of fumaric acid. The exact mechanism of action in multiple sclerosis is unknown. It is thought to activate the nuclear factor (erythroid-derived 2)-like 2 (Nrf2) pathway, which induces antioxidant response elements and upregulates cytoprotective genes, reducing oxidative stress and inflammation.
Teriflunomide inhibits dihydroorotate dehydrogenase, a key enzyme in de novo pyrimidine synthesis, thereby reducing proliferation of activated T and B lymphocytes.
240 mg orally twice daily.
7 mg orally once daily with or without food.
None Documented
None Documented
The terminal elimination half-life of monomethyl fumarate (MMF) is approximately 1 hour. Due to rapid metabolism and elimination, MMF does not accumulate with multiple doses. No context of clinical significance is observed for accumulation.
Clinical Note
moderateTeriflunomide + Gatifloxacin
"Teriflunomide may increase the neuroexcitatory activities of Gatifloxacin."
Clinical Note
moderateTeriflunomide + Rosoxacin
"Teriflunomide may increase the neuroexcitatory activities of Rosoxacin."
Clinical Note
moderateTeriflunomide + Trovafloxacin
"Teriflunomide may increase the neuroexcitatory activities of Trovafloxacin."
Clinical Note
moderateTeriflunomide + Nalidixic acid
Terminal half-life approximately 18-19 days (range 10-30 days) due to enterohepatic recirculation. Clinical context: Requires prolonged elimination (up to 2 years to reach undetectable levels) due to slow clearance; accelerated elimination with cholestyramine or activated charcoal may be needed for toxicity.
Dimethyl fumarate is extensively metabolized; less than 1% is excreted unchanged in urine. The major metabolite, monomethyl fumarate, is further metabolized via the tricarboxylic acid cycle. Excretion occurs primarily as CO2 via exhalation, with about 60% of a dose recovered as CO2. Renal excretion accounts for approximately 16% of the dose as metabolites, and fecal excretion accounts for about 1%.
Primarily biliary/fecal (approximately 60% unchanged drug and metabolites in feces, 23% in urine). Renal elimination of unchanged drug is minimal (<0.5%). Enterohepatic recycling contributes to long half-life.
Category C
Category C
Immunomodulator, Fumaric Acid Derivative
Immunomodulator
"Teriflunomide may increase the neuroexcitatory activities of Nalidixic acid."