Comparative Pharmacology
Head-to-head clinical analysis: AMANTADINE versus SYLATRON.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMANTADINE versus SYLATRON.
AMANTADINE vs SYLATRON
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Amantadine is an antiviral and antiparkinsonian agent. Its antiviral mechanism involves inhibition of viral uncoating, thereby blocking influenza A M2 ion channel. In Parkinson's disease, it is thought to increase dopamine release and inhibit its reuptake, and may also have anticholinergic and NMDA receptor antagonist effects.
Peginterferon alfa-2b binds to type I interferon receptors, activating JAK-STAT signaling and inducing expression of antiviral, antiproliferative, and immunomodulatory proteins.
100 mg orally twice daily for Parkinson's disease; 100 mg orally twice daily for influenza A prophylaxis/treatment (up to 200 mg/day).
200 mcg/kg subcutaneously once weekly for 1 year in combination with oral ribavirin.
None Documented
None Documented
Clinical Note
moderateAmantadine + Haloperidol
"The therapeutic efficacy of Haloperidol can be decreased when used in combination with Amantadine."
Clinical Note
moderateAmantadine + Mifepristone
"Amantadine may increase the QTc-prolonging activities of Mifepristone."
Clinical Note
moderateAmantadine + Promazine
"The therapeutic efficacy of Promazine can be decreased when used in combination with Amantadine."
Clinical Note
moderateAmantadine + Chlorpromazine
Terminal elimination half-life: 10-14 hours in young adults, up to 24 hours in elderly; prolonged to >24 hours in renal impairment
Terminal elimination half-life is approximately 40 hours (range 27-60 hours) following subcutaneous administration. This prolonged half-life supports once-weekly dosing.
Renal: 90% as unchanged drug via glomerular filtration and tubular secretion; fecal: <10%
Renal clearance is the primary route of elimination for peginterferon alfa-2b. Approximately 30% of the dose is excreted unchanged in urine, with the remainder metabolized and excreted via bile/feces.
Category C
Category C
Antiviral / Antiparkinsonian
Interferon Antineoplastic/Antiviral
"The therapeutic efficacy of Chlorpromazine can be decreased when used in combination with Amantadine."