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  2. List of ibuprofen brand names - Wikipedia

    en.wikipedia.org/wiki/List_of_ibuprofen_brand_names

    Myprodol: South Africa Narfen: South Korea Naron Ace: Japan Neobrufen: Spain Neofen: Croatia Neo Rheumacyl Anti-Inflammatory IBP: Topical gel: 5%: Indonesia [15] Neupren: Tablet: 200 mg, 400 mg, 600 mg: Algeria Norvectan: Spain Nuprin: Canada, USA [3] Nureflex: Austria Nurofen: Tablet, caplet, oral liquid, topical gel [4] [16] tablet: 200 mg ...

  3. Rate equation - Wikipedia

    en.wikipedia.org/wiki/Rate_equation

    In chemistry, the rate equation (also known as the rate law or empirical differential rate equation) is an empirical differential mathematical expression for the reaction rate of a given reaction in terms of concentrations of chemical species and constant parameters (normally rate coefficients and partial orders of reaction) only. [1]

  4. Equianalgesic - Wikipedia

    en.wikipedia.org/wiki/Equianalgesic

    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]

  5. Law of reciprocal proportions - Wikipedia

    en.wikipedia.org/wiki/Law_of_reciprocal_proportions

    This ratio of 1.19 obeys the law because it is a simple fraction (1/3) of 3.58. (This is because it corresponds to the formula ICl 3, which is one known compound of iodine and chlorine.) Similarly, hydrogen, carbon, and oxygen follow the law of reciprocal proportions. The acceptance of the law allowed tables of element equivalent weights to be ...

  6. Plateau principle - Wikipedia

    en.wikipedia.org/wiki/Plateau_Principle

    The plateau principle is a mathematical model or scientific law originally developed to explain the time course of drug action (pharmacokinetics). [1] The principle has wide applicability in pharmacology, physiology, nutrition, biochemistry, and system dynamics.

  7. Bioequivalence - Wikipedia

    en.wikipedia.org/wiki/Bioequivalence

    The FDA investigated these complaints and concluded that the generic version is equivalent to Wellbutrin XL in regard to bioavailability of bupropion and its main active metabolite hydroxybupropion. The FDA also said that coincidental natural mood variation is the most likely explanation for the apparent worsening of depression after the switch ...

  8. Matching law - Wikipedia

    en.wikipedia.org/wiki/Matching_law

    For example, an animal pressing a lever for food might pause for a drink of water. The matching law was first formulated by R.J. Herrnstein (1961) following an experiment with pigeons on concurrent variable interval schedules. [3] Pigeons were presented with two buttons in a Skinner box, each of which led to varying rates of food reward. The ...

  9. Onsager reciprocal relations - Wikipedia

    en.wikipedia.org/wiki/Onsager_reciprocal_relations

    The rate of entropy production for the above simple example uses only two entropic forces, and a 2×2 Onsager phenomenological matrix. The expression for the linear approximation to the fluxes and the rate of entropy production can very often be expressed in an analogous way for many more general and complicated systems.