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Portal:Pharmacy and Pharmacology

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THE PHARMACY and PHARMACOLOGY PORTAL

Pharmacy (from the Greek φάρμακον = drug) is a transitional field between health sciences and chemical sciences and a profession charged with ensuring the safe use of medication. Traditionally, pharmacists have compounded and dispensed medications based on prescriptions from physicians. More recently, pharmacy has come to include other services related to patient care including clinical practice, medication review, and drug information. Some of these new pharmaceutical roles are now mandated by law in various legislatures. Pharmacists, therefore, are drug therapy experts, and the primary health professionals who optimise medication management to produce positive health-outcomes.

Pharmacology (in Greek: pharmacon (φάρμακον) meaning drug, and logos (λόγος) meaning science) is the study of how substances interact with living organisms to produce a change in function. If substances have medicinal properties, they are considered pharmaceuticals. The field encompasses drug composition and properties, interactions, toxicology, therapies, medical applications, and antipathogenic capabilities.

The field of pharmacy can generally be divided into three main disciplines:

Inside every branch of pharmacy there are many specialized branches related to many scientific disciplines. This makes pharmaceuticals related to the majority of pure and applied sciences. for example, medicinal chemistry can be divided into: ADME, bioavailability, chemogenomics, drug design, drug discovery, enzyme inhibition, mechanism of action, new chemical entity, pharmacodynamics, pharmacokinetics, pharmacology , pharmacophore perception, Quantitative Structure-Activity Relationship, and Structure-Activity Relationship.

Many other sciences are also related to many branches of pharmacy: we can mention physical chemistry including mixing and mass transfer which makes basis for pharmaceutics. The quality control process which is so necessary after the pharmaceutical production depends essentially on analytical chemistry.

Biology (including molecular biology and biochemistry), physiology, organic chemistry, microbiology, parasitology , and also botany are all related in some way with one of pharmacy sciences. Recently the field of drug discovery and drug design has developed with the new technologies invented in other fields like bioinformatics, cheminformatics, computational chemistry, genetics, and proteomics.

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Featured article

Space-filling model of the antioxidant metabolite glutathione. The yellow sphere is the redox-active sulfur atom that provides antioxidant activity, while the red, blue, white, and dark grey spheres represent oxygen, nitrogen, hydrogen, and carbon atoms, respectively.

An Antioxidant is a molecule capable of slowing or preventing the oxidation of other molecules. Oxidation is a chemical reaction that transfers electrons from a substance to an oxidizing agent. Oxidation reactions can produce free radicals, which start chain reactions that damage cells. Antioxidants terminate these chain reactions by removing radical intermediates, and inhibit other oxidation reactions by being oxidized themselves. As a result, antioxidants are often reducing agents such as thiols or polyphenols.

Although oxidation reactions are crucial for life, they can also be damaging; hence, plants and animals maintain complex systems of multiple types of antioxidants, such as glutathione, vitamin C, and vitamin E as well as enzymes such as catalase, superoxide dismutase and various peroxidases. Low levels of antioxidants, or inhibition of the antioxidant enzymes causes oxidative stress and may damage or kill cells. As oxidative stress has been implicated in the pathogenesis of many human diseases, the use of antioxidants in pharmacology is intensively studied, particularly as treatments for stroke and neurodegenerative diseases. However, it is unknown whether oxidative stress is the cause or the consequence of such diseases. Antioxidants are also widely used as ingredients in dietary supplements in the hope of maintaining health and preventing diseases such as cancer and coronary heart disease.


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Paracetamol , Caffein

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Chemical Structure of Cytochrome P450 2D6

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Did you know ..

  • The therapeutic index of a medication is a comparison of the amount that causes the therapeutic effect to the amount that causes toxic effects. Quantitatively, it is the ratio of the dose required to produce the desired therapeutic effect and the toxic dose. A commonly used measure of therapeutic index is the effective dose of a drug for 50% of the population (ED50) divided by the lethal dose for 50% of the population (LD50).
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v • d • ePharmacy and Pharmacology Topics *Pharmacy

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Related subjects

v • d • eMedications and Drugs Topics == Types of medication ==

For the gastrointestinal tract or digestive system

For the cardiovascular system

For the central nervous system

See also: Psychoactive drug

hypnotic, anaesthetics, antipsychotic, antidepressant (including tricyclic antidepressants, monoamine oxidase inhibitor, lithium salt, selective serotonin reuptake inhibitor), anti-emetic, anticonvulsant and antiepileptic, anxiolytic, barbiturate, movement disorder drug, stimulant (including amphetamines), benzodiazepine, cyclopyrrolone, dopaminergic, dopamine antagonist, antihistamine, cholinergic, anticholinergic, emetic, cannabinoids, serotonergic, 5-HT antagonist

For pain & consciousness (analgesic drugs)

Further information: Analgesic

The main classes of painkillers are NSAIDs, opioids and various orphans such as paracetamol, tricyclic antidepressants and anticonvulsants.

For musculo-skeletal disorders

NSAIDs (including COX-2 selective inhibitors), muscle relaxant, neuromuscular drug
anticholinesterase

For the eye

For the ear, nose and oropharynx

sympathomimetic, antihistamine, anticholinergic, NSAIDs, steroid, antiseptic, local anesthetic, antifungal, cerumenolytic

For the respiratory system

bronchodilator, NSAIDs, anti-allergic, antitussive, mucolytic, decongestant
corticosteroid, beta-receptor antagonist, anticholinergic, steroid

For endocrine problems

androgen, antiandrogen, gonadotropin, corticosteroid, growth hormone, insulin, antidiabetic (sulfonylurea, biguanide/metformin, thiazolidinedione, insulin), thyroid hormones, antithyroid drugs, calcitonin, diphosponate, vasopressin analogues

For the reproductive system or urinary system

antifungal, alkalising agent, quinolones, antibiotic, cholinergic, anticholinergic, anticholinesterase, antispasmodic, 5-alpha reductase inhibitor, selective alpha-1 blocker, sildenafil

For contraception

contraceptive, oral contraceptives, spermicide, depot contraceptives

For obstetrics and gynaecology

NSAIDs, anticholinergic, haemostatic drug, antifibrinolytic, Hormone Replacement Therapy, bone regulator, beta-receptor agonist, follicle stimulating hormone, luteinising hormone, LHRH
gamolenic acid, gonadotropin release inhibitor, progestogen, dopamine agonist, oestrogen, prostaglandin, gonadorelin, clomiphene, tamoxifen, Diethylstilbestrol

For the skin

emollient, anti-pruritic, antifungal, disinfectant, scabicide, pediculicide, tar products, vitamin A derivatives, vitamin D analogue, keratolytic, abrasive, systemic antibiotic, topical antibiotic, hormones, desloughing agent, exudate absorbent, fibrinolytic, proteolytic, sunscreen, antiperspirant, corticosteroid

For infections and infestations

antibiotic, antifungal, antileprotic, antituberculous drug, antimalarial, anthelmintic, amoebicide, antiviral, antiprotozoal, antiserum

For immunology

vaccine, immunoglobulin, immunosuppressant, interferon, monoclonal antibody

For allergic disorders

anti-allergic, antihistamine, NSAIDs

For nutrition

tonic, iron preparation, electrolyte, parenteral nutritional supplement, vitamins, anti-obesity drug, anabolic drug, haematopoietic drug, food product drug

For neoplastic disorders

cytotoxic drug, sex hormones, aromatase inhibitor, somatostatin inhibitor, recombinant interleukins, G-CSF, erythropoietin

For diagnostics

contrast media

For euthanasia

A euthanaticum is used for euthanasia and physician-assisted suicide, see also barbiturates.

Other/related topics

Polypharmacy: suggests that multiple use of prescribed and non-prescribed medications, (use of 5 or more), can have adverse effects on the recipient.

Zoopharmacognosy: Animal usage of drugs and non-foods.

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Pharmacy on Wikinews    Pharmacy on Wikiquote    Pharmacy on Wikibooks    Pharmacy on Wikisource    Pharmacy on Wiktionary    Pharmacy on Wikimedia CommonsNewsQuotationsManuals & TextsTextsDefinitionsImages


Pharmacology on Wikinews    Pharmacology on Wikiquote    Pharmacology on Wikibooks    Pharmacology on Wikisource    Pharmacology on Wiktionary    Pharmacology on Wikimedia CommonsNewsQuotationsManuals & TextsTextsDefinitionsImages
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