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 (pə-sŏl′ə-jē, pō-)
The study of the dosages of medications.

[Greek posos, what quantity + -logy.]


(Medicine) the branch of medicine concerned with the determination of appropriate doses of drugs or agents
[C19: from French posologie, from Greek posos how much]
posological adj


(pəˈsɒl ə dʒi, poʊ-)

the branch of pharmacology dealing with the determination of dosage.
[1805–15; < Greek póso(s) how much + -logy]
pos•o•log•ic (ˌpɒs əˈlɒdʒ ɪk) pos`o•log′i•cal, adj.


1. the science of medicinal dosage.
2. a system of dosage. — posologic, posological, adj.
See also: Medical Specialties
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.posology - the pharmacological determination of appropriate doses of drugs and medicines
materia medica, pharmacological medicine, pharmacology - the science or study of drugs: their preparation and properties and uses and effects
References in periodicals archive ?
2 requires that the PIs should be in English and must include information on therapeutic indications, posology and method of administration, contraindications, special warnings and precautions drug interactions, contraindications in pregnancy and lactation, effects on ability to drive and use machines, undesirable effects, and antidote for overdosage.
Table 4 shows the general recommendations for reconstitution, dilution and infusion of antimicrobials used in OPAT, along with doses and posology of each drug envisaged.
There are indications, posology, ways of administration and age ranges that are not the ones previously tested and approved (24).
Posology and method of administration of compound Danshen dripping pills
The posology includes both two- and three-dose schedules, providing flexibility for healthcare professionals to administer the vaccine depending on individuals' risk of exposure and susceptibility to MenB.
It is like a two-sided coin: the subjective side of thoughts cut short, and the objective side of the medical letter, with symptoms and their evolution, medication posology, side effects--all of this getting into the same cool, objective and professional pattern of the observations in the medical ward, coming to the effect of a substance abuse in association with alcohol.
11,12) That is why we prescribed to our patient albendazole in the posology of 400 mg twice daily for 3 weeks, with effectiveness after 2 weeks of treatment.
The ex vivo model was also used to determine the effective dose and adequate posology of the natural products with revealed anti-atherosclerotic activity.
2,20,21) However, colistin was given to all of our patients with standard posology.
2' mandates that the package insert must be in English and must include information on therapeutic indications; posology and method of administration; contraindications; special warnings and precautions; drug interactions; contraindications in pregnancy and lactation; effects on ability to drive and use machines; undesirable effects; and antidote for overdosing.
Vitamin B12 (Cobalamin) Presentation, Pharmacology and Posology.
It has been reported that potential MDR suppressors of herbal origin may easily interact with the same efflux (P-gp) and metabolic (Cyp3A4) pathways as anticancer agents do, resulting in opposite outcomes: inhibition or expression of MDR components, depending on timing, dosages, posology, and route of drug administration [33].