According to AboutKidsHealth, amoxicillin begins to work within a few days after beginning the dosage. This medicine is like penicillin and works to fight bacteria, WebMD explains. More »

Amoxicillin is not available over the counter. It is a prescription antibiotic that is used to treat certain infections caused by bacteria. It does not work for viruses, such as those that cause a cold or the flu. More »

Amoxicillin and clavulanic acid tablets are antibiotics used to treat bacterial infections, including those of the ear, lung, sinus, urinary tract and skin. This combination drug is also used to treat certain sexually tr... More »

WebMD states that amoxicillin is the first choice to treat acute or recurrent sinus infections, and trimethoprim-sulfamethoxazole is next given to those allergic to amoxicillin. These antibiotics are taken orally or intr... More »

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Common antibiotics for dental infections include erythromycin, amoxicillin, penicillin, clindamycin and metronidazole, according to WebMD. Dentists and doctors routinely give the antibiotics orally in a liquid or pill fo... More »

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Antibiotics fall into several main classes, including penicillins, such as amoxicillin; cephalosporins, such as Keflex; macrolides, such as Biaxin and Zithromax; and fluroquinolones, such as Cipro and Levaquin, notes eMe... More »

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Antibiotics that are commonly used to treat sinus infections include clarithromycin, amoxicillin, ampicillin, erythromycin and cefprozil, according to WebMD. However, many sinus infections are caused by a virus and canno... More »

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