Comparative Pharmacology
Head-to-head clinical analysis: SULFANILAMIDE versus TERFONYL.
Peer-Reviewed Evidence
Head-to-head clinical analysis: SULFANILAMIDE versus TERFONYL.
SULFANILAMIDE vs TERFONYL
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Competitive inhibitor of dihydropteroate synthase, blocking para-aminobenzoic acid (PABA) incorporation into dihydropteroic acid, thereby inhibiting bacterial folic acid synthesis.
TERFONYL is a sulfonamide antibiotic that inhibits bacterial dihydropteroate synthase, thereby blocking folate synthesis and bacterial DNA replication.
2-4 g orally initially, then 2-4 g every 4-6 hours, not to exceed 12 g/day; intravenous: 4-8 g/day in divided doses every 6-8 hours.
2 g intravenously every 12 hours over 24 hours for susceptible infections.
None Documented
None Documented
Terminal elimination half-life: 7-12 hours; prolonged in renal impairment (up to 24-48 hours).
Clinical Note
moderateSulfanilamide + Fesoterodine
"The serum concentration of the active metabolites of Fesoterodine can be increased when Fesoterodine is used in combination with Sulfanilamide."
Clinical Note
moderateSulfanilamide + Atorvastatin
"The risk or severity of adverse effects can be increased when Sulfanilamide is combined with Atorvastatin."
Clinical Note
moderateSulfanilamide + Mecamylamine
"The risk or severity of adverse effects can be increased when Sulfanilamide is combined with Mecamylamine."
Clinical Note
moderateTerminal elimination half-life is 2.5-4 hours in adults with normal renal function; prolonged to 12-24 hours in severe renal impairment (CrCl < 30 mL/min).
Primarily renal via glomerular filtration and tubular secretion; ~50-70% excreted unchanged in urine; biliary/fecal excretion minimal (<5%).
Renal excretion accounts for 70-90% of elimination as unchanged drug via glomerular filtration and tubular secretion; biliary/fecal excretion constitutes 10-30%.
Category C
Category C
Sulfonamide Antibiotic
Sulfonamide Antibiotic
Sulfanilamide + Picosulfuric acid
"The therapeutic efficacy of Picosulfuric acid can be decreased when used in combination with Sulfanilamide."