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An equianalgesic chart is a conversion chart that lists equivalent doses of analgesics (drugs used to relieve pain). Equianalgesic charts are used for calculation of an equivalent dose (a dose which would offer an equal amount of analgesia) between different analgesics. [1]
Methylphenobarbital (), also known as mephobarbital (USAN, JAN) and mephobarbitone (), marketed under brand names such as Mebaral, Mephyltaletten, Phemiton, and Prominal, is a drug which is a barbiturate derivative and is used primarily as an anticonvulsant, [2] but also as a sedative and anxiolytic.
Primidone is an anticonvulsant of the barbiturate class; [7] however, its long-term effect in raising the seizure threshold is likely due to its active metabolite, phenobarbital. [10] The drug’s other active metabolite is phenylethylmalonamide (PEMA). Primidone was approved for medical use in the United States in 1954. [7]
Phenobarbital, also known as phenobarbitone or phenobarb, sold under the brand name Luminal among others, is a medication of the barbiturate type. [6] It is recommended by the World Health Organization (WHO) for the treatment of certain types of epilepsy in developing countries . [ 8 ]
Population pharmacokinetics seeks to identify the measurable pathophysiologic factors and explain sources of variability that cause changes in the dose-concentration relationship and the extent of these changes so that, if such changes are associated with clinically relevant and significant shifts in exposures that impact the therapeutic index ...
Celexa – an antidepressant of the SSRI class; Centrax – an anti-anxiety agent; Clozaril – atypical antipsychotic used to treat resistant schizophrenia; Concerta (methylphenidate) – an extended release form of methylphenidate
Only the phenobarbital group demonstrated a significant change in pain type compared to belladonna alkaloids at the end of the study with an approximate 48% response rate. Patients on Donnatal® tablets, belladonna alkaloids, and placebo all had non-significant (p > 0.149) shifts to dull pain, 39.5%, 52.3%, and 40.4%, respectively compared to ...
Phenylethylmalonamide (PEMA) is an active metabolite of the anticonvulsant drug primidone, although it is produced in a much lower concentration than phenobarbital, the other active metabolite. [ 1 ] References