Concept
Pharmacocinétique
Concepts associés (53)
Drug delivery
Drug delivery refers to approaches, formulations, manufacturing techniques, storage systems, and technologies involved in transporting a pharmaceutical compound to its target site to achieve a desired therapeutic effect. Principles related to drug preparation, route of administration, site-specific targeting, metabolism, and toxicity are used to optimize efficacy and safety, and to improve patient convenience and compliance. Drug delivery is aimed at altering a drug's pharmacokinetics and specificity by formulating it with different excipients, drug carriers, and medical devices.
Polypharmacy
Polypharmacy (polypragmasia) is an umbrella term to describe the simultaneous use of multiple medicines by a patient for their conditions. Most commonly it is defined as regularly taking five or more medicines but definitions vary in where they draw the line for the minimum number of drugs. Polypharmacy is often the consequence of having multiple long-term conditions, also known as multimorbidity. An excessive number of medications is worrisome, especially for older patients with many chronic health conditions, because this increases the risk of an adverse event in those patients.
Théophylline
La théophylline ou 1,3-diméthylxanthine est un alcaloïde du type méthylxanthine. C'est, avec d'autres alcaloïdes comme la caféine ou la théobromine, l'une des principales substances actives des feuilles de thé, d'où elle tire son nom. Elle est également présente entre autres dans le café, le chocolat, le maté et le guarana. Elle agit comme diurétique, comme psychostimulant, comme bronchodilatateur et comme agent lipolytique. Les propriétés broncho-dilatatrices de la théophylline ont longtemps été utilisées dans le traitement de la bronchite chronique et de l'asthme.