Adawiya A.  Mahmood Al-Nuaimi, 
    Mathematical Model for the Effective Medicine Dosage and its
Concentration in Blood Stream of a Patient,
    Journal of Engineering and Applied Sciences,
    Volume 13,Issue 22,
    2018,
    Pages 9768-9770,
    ISSN 1816-949x,
    jeasci.2018.9768.9770,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2018.9768.9770)
    Abstract: For most drugs there is a minimum concentration below which the drug is ineffective and a maximum
concentration above which the drug is dangerous. This study presents a mathematical model for the effective
medicine dosage and its concentration in bloodstream of a patient. Two mathematical tools, the exponential
decay and geometric series are used to find the dose concentration of a drug in bloodstream of a patient.
    Keywords: Dose concentration;exponential decay;geometric series;mathematical model;patient;series