Comparative Pharmacology
Head-to-head clinical analysis: ASCORBIC ACID versus FOLICET.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ASCORBIC ACID versus FOLICET.
ASCORBIC ACID vs FOLICET
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Ascorbic acid is a water-soluble vitamin that acts as an electron donor for several enzymatic reactions, including collagen synthesis, neurotransmitter synthesis, and carnitine synthesis. It also functions as a potent antioxidant, protecting cells from oxidative damage.
Folic acid is reduced to tetrahydrofolate (THF) through the enzyme dihydrofolate reductase. THF is a cofactor in one-carbon transfer reactions involved in purine and pyrimidine synthesis, and amino acid metabolism, essential for DNA synthesis and cell division.
Oral: 100-200 mg daily for prevention; 500-1000 mg daily for deficiency. IV/IM: 100-250 mg once daily for deficiency; higher doses (e.g., 1-3 g daily) for scurvy.
1 mg orally once daily. For treatment of megaloblastic anemia, up to 5 mg daily initially.
None Documented
None Documented
Clinical Note
moderateAscorbic acid + Cyclosporine
"The serum concentration of Cyclosporine can be decreased when it is combined with Ascorbic acid."
Clinical Note
moderateAscorbic acid + Bortezomib
"The therapeutic efficacy of Bortezomib can be decreased when used in combination with Ascorbic acid."
Clinical Note
moderateAscorbic acid + Benzphetamine
"The serum concentration of Benzphetamine can be decreased when it is combined with Ascorbic acid."
Clinical Note
moderateAscorbic acid + Amphetamine
Terminal half-life: 10-20 hours in healthy adults; prolonged in renal impairment. Clinical context: doses >200 mg/day lead to renal elimination of unchanged ascorbate, reducing half-life.
Terminal elimination half-life is 3-5 hours in adults with normal renal function; may be prolonged up to 12-24 hours in severe renal impairment (CrCl <30 mL/min).
Renal: 100% as unchanged drug and metabolites; tubular reabsorption is saturable; at high doses, excretion increases proportionally. Fecal: minimal.
Primarily renal elimination: approximately 80% of the dose is excreted unchanged in urine via glomerular filtration and active tubular secretion. Biliary/fecal excretion accounts for <15%.
Category C
Category C
Vitamin
Vitamin
"The serum concentration of Amphetamine can be decreased when it is combined with Ascorbic acid."