
	3D Medical Animations Close This information is provided by an independent source. Merck & Co. does not endorse and is not responsible for the accuracy of the content, or for the practices or standards of non-Merck sources. This information provided is not intended to be a substitute for professional medical advice. A licensed healthcare professional should be consulted for diagnosis and treatment of any and all medical conditions. The manufacturer of a product generally has the most complete information about that product. How to use How to use The world's largest library of 3D medical animations developed and copyrighted by Blausen Medical Communications. The Human Atlas figures rotating model, labeled slides, and printable text in addition to animated videos. Shows a video of the selected health topic. Controls play, pause, and restart of the video. Shows a summary of the selected health topic. Controls to scroll the text. Shows a 3 D model of the video. Controls to rotate the model. Shows slides from the video. Controls to change slides.

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This information is provided by an independent source. Merck & Co., Inc. is not responsible for this content. Please discuss any and all treatment options with your healthcare professional. The manufacturer of a product generally has the most complete information about that product.

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antibiotic (an″te-) (an″ti-bi-ot�ik) destructive of life.
a chemical substance having the capacity, in dilute solution, to kill or inhibit growth of microorganisms. Antibiotics that are sufficiently nontoxic to the host are used as chemotherapeutic agents to treat infectious diseases of humans, animals, and plants. The term was originally restricted to substances produced by microorganisms, but has been extended to include synthetic and semisynthetic compounds of similar chemical activity.

antineoplastic antibiotics , antitumor antibiotics a class of antineoplastic agents that apparently affect the function or the synthesis, or both, of nucleic acids and thus are cell cycle nonspecific. See also antineoplastic therapy.

beta-lactam antibiotic , β-lactam antibiotic any of a group of antibiotics, including the cephalosporins and the penicillins, whose chemical structure contains a specific type of ring. They act by interfering with the formation of the bacterial wall.

broad-spectrum antibiotic one that is effective against a wide range of bacteria, both gram-positive and gram-negative.

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