• Zetia is used to treat high cholesterol in combination with low fat diet.
    $0.98
  • Zyban is an atypical antidepressant which helps to stop smoking by reducing cravings and withdrawals.
    $1.11
  • Zestoretic is a combination of a diuretic and an ACE inhibitor indicated to treat high blood pressure.
    $1.05
  • Zestril is ACE inhibitor which relaxes and widens blood vessels, helps to lower high blood pressure and ...
    $0.47
  • Zebeta is a beta-blocker, indicated to treat high blood pressure employed alone or in combination with ...
    $0.55
  • Zovirax is an antiviral medication used to treat herpes infections of the skin, lip, and genitals; herpes ...
    $0.47
  • Zyloprim is used to treat gout or kidney stones, and to decrease levels of uric acid.
    $0.34
  • Zithromax is a macrolide antibiotic to treat infections of upper and low respiratory tract, especially ...
    $0.47
  • Zantac is prescribed for treatment and prevention of ulcers in the stomach and intestines, it works decreasing ...
    $0.28
  • Zanaflex is a muscle relaxer to treat spasticity, it works temporarily relaxing muscle tone of the tense, ...
    $0.67
  • Zocor is a cholesterol- lowering medication prescribed to inhibit the production of cholesterol by the ...
    $0.62
  • Zyprexa is an atypical antipsychotic drug to treat schizophrenia and bipolar disorder.
    $0.42
  • Zenegra affects the response to sexual stimulation.
    $0.97
  • Zyvox is an oxazolidinones antibiotic to treat infections caused by Enterococcus and Streptococcus.
    $7.22
  • Zofran is a prescription medicine that has been licensed to prevent nausea and vomiting due to several ...
    $0.79
  • The Zero Nicotine Patch is a transdermal patch which contains herbal ingredients that mimic some of the ...
    $51.33
  • Udenafil is used to treat erectile dysfunction (impotence) and symptoms of benign prostatic hypertrophy ...
    $11.79
Antibiotics

Antibiotics is one of most prescribed group of medications. Antibiotics are antibacterial (antimicrobial agents) that kills bacteria(bactericidal) or stop the growth of the bacteria(bacteriostatic action).

Antibiotics are used to treat bacterial infections and are not indicated for the viral infections. Currently there is a big variety of antibiotics available. All the antibiotics are divided into two main groups according to the action mechanism:

  • Antibiotics with bactericidal action(penicillins, cephalosporins, aminoglycoside)
  • Antibacterial with bacteriostatic action(macrolides, tetracyclines)

Penicillins and cephalospororins are the most prescribed group of antibiotics. They belong to half-synthetic beta lactam antibiotics. These antibiotics work by inhibiting the enzymes responsible for the production of peptidoglycan. Peptidoglycan is a biopolimer that is a main structural component of the bacterial cell wall. The blockage of peptidoglycan synthesis leads to the lysis of the microorganisms.

Another group of preparations are aminoglycosides. However, these antibiotics are prescribed in rare cases. The most of aminoglycosides possesses nephrotoxicity, ototoxicity and cab cause neuromuscular blockage. Bactericidal action of aminoglycosides is related to the interfering with the synthesis of proteins on the ribisomes in the microbial cells. When aminoglycosides are used with penicillins and cephalosporins the sinergism against gram-positive and gram-negative microorganisms is observed.

Among all bacteriostatic antibiotics macrolides and tetracyclines are the most indicated groups. Therapeutic effect of macrolides is associated with inhibiting the synthesis of proteins on the ribosomes in the microbial cell. As usual macrolides exert bacteriostatic action, however in high amounts are able to exert bactericidal action on some microorganisms. Besides antibacterial action, some macrolides possesses immunomodulatory and anti-inflammatory action.

Another group of bacteriostatic antibiotics are used less frequently as many microorganisms became resistant to the this type of antibiotics. Bacteriostatic effect of the tetracyclines is associated with inhibiting the synthesis of proteins. Tetracycline are indicated in clamydia infections, rickettsial disease, some zoonosis, severe acne.

Antibiotics are indicated and used only in the cases of the bacteria is sensitive to the antibiotics. There some specific tests like antibiogram that will help to determine the right antibiotic and corresponding dose.