Comparative Pharmacology
Head-to-head clinical analysis: ALBENZA versus POVAN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ALBENZA versus POVAN.
ALBENZA vs POVAN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Albendazole is a benzimidazole carbamate that inhibits tubulin polymerization by binding to the colchicine site of β-tubulin, disrupting microtubule formation. This leads to impaired uptake of glucose and depletion of glycogen stores, resulting in immobilization and death of susceptible helminths.
Pyrvinium pamoate inhibits oxidative metabolism and glucose uptake in susceptible helminths, leading to energy depletion and paralysis of the worm. It also binds to DNA and inhibits RNA synthesis in the parasite.
400 mg orally twice daily for 60 days for neurocysticercosis; 400 mg orally once daily for 3 days for pinworm; 400 mg orally once daily for 3 days for hookworm, roundworm, whipworm; 400 mg orally twice daily for 3 days for tapeworms; 400 mg orally twice daily for 7 days for giardiasis.
Pyrantel pamoate: 11 mg/kg (maximum 1 g) orally once; repeat in 2 weeks for pinworm. For ascariasis, hookworm, trichostrongyliasis: 11 mg/kg (max 1 g) once daily for 3 days.
None Documented
None Documented
Terminal elimination half-life of albendazole sulfoxide (active metabolite) is 8-12 hours; albendazole itself has a very short half-life (<1 hour) due to extensive first-pass metabolism.
Terminal elimination half-life is approximately 16 hours; clinically, this supports single-dose administration with slow elimination
Primarily biliary/fecal (less than 2% renal as unchanged drug and metabolites; most eliminated via bile into feces as metabolites).
Primarily fecal (90%) as unchanged drug via bile; renal excretion is minimal (<1%)
Category C
Category C
Anthelmintic
Anthelmintic