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What are antibiotics ?

Discussion in 'Pharmacology' started by John Jossef, Mar 25, 2011.

  1. John Jossef

    John Jossef Bronze Member

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    An antibacterial is a compound or substance that kills or slows down the growth of bacteria. The term is often used synonymously with the term antibiotic(s); today, however, with increased knowledge of the causative agents of various infectious diseases, antibiotic(s) has come to denote a broader range of antimicrobial compounds, including anti-fungal and other compounds.

    The term "antibiotic" was coined by Selman Waksman in 1942 to describe any substance produced by a microorganism that is antagonistic to the growth of other microorganisms in high dilution. This definition excluded substances that kill bacteria but are not produced by microorganisms (such as gastric juices and hydrogen peroxide). It also excluded synthetic antibacterial compounds such as the sulfonamides. Many antibacterial compounds are relatively small molecules with a molecular weight of less than 2000 atomic mass units.

    With advances in medicinal chemistry, most of today's antibacterials chemically are semisynthetic modifications of various natural compounds. These include, for example, the beta-lactam antibacterials, which include the penicillins (produced by fungi in the genus 'Penicillium'), the cephalosporins, and the carbapenems. Compounds that are still isolated from living organisms are the aminoglycosides, whereas other antibacterials
     

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  2. Dr.soso

    Dr.soso Well-Known Member

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    tank's for these formation ...
     

  3. rabab froja

    rabab froja Famous Member

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    good brief introduction on antibiotics :)
     

  4. SlaneyMogul

    SlaneyMogul Well-Known Member

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    An anti-biotic is a medication that eliminates or decreases the development of bacteria or viruses. Medications are one type of "antimicrobials", a bigger team which also contains anti-viral, anti-fungal, and anti-parasitic medication. They are relatively simple to the coordinator, and therefore can be used to cure illness.
     

  5. carol123

    carol123 Young Member

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    What are the side effects of antibiotic erythromycin?
    I have been prescribed this for cystic, hormonal acne. I have been taking it for 5 days now and just was wondering the side effects.
     

  6. danial76

    danial76 Young Member

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    good thread
     

  7. Luis

    Luis Active member

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    Who can tell something about the use of ciprofloxacin for an abscess??
    Is it really needed? because I think using another antibiotic can solve the problem
    one of narrow spectrum maybe.
    I am asking because I have seen this lot of time in a clinic but I think it should
    not be like that, because of the bacterial resistance
     

  8. BrittonPatrick

    BrittonPatrick Young Member

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    Some medicines must be taken with antibiotics, because these negates the unwanted effects of those medicines...these are quite necessary and must not be avoided.
     

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