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Identification

• Considered a macrolide antibiotic, mycin works by slowing the growth of the bacteria and in some instances killing it completely. According to Drugs.com, the medication works by blocking the production of essential bacterial proteins. In doing so, the bacteria's growth is hindered and often ceases completely. Typical infections that mycin treats include gonorrhea, pinkeye, syphilis and whooping cough.
  
  

Serious Side Effects

• The use of mycin can lead to the following serious side effects: chest pain, irregular heartbeat, fast or slow heartbeat, lightheadedness, severe nausea, yellowing of the eyes or skin, dark-colored urine, pale stools, and bloody or watery diarrhea. If any of the preceding side effects occur, stop using the medication immediately and seek medical attention.
  
  

Less Serious Side Effects

• According to Drugs.com, a number of common side effects may occur that are less serious and do not require medical attention. These include: mild nausea, stomach pain or vomiting, headache, dizziness, mild rash or itching, vaginal itching or discharge, and general weakness or tiredness. If any of these side effects worsen or become persistent, call your doctor immediately.
  
  

Use

• Take mycin exactly as prescribed by your doctor. Never change the recommended dose or length of use. Mycin may be used with or without food, but should always be taken with at least eight ounces of water. If taking mycin in liquid form, shake welly. Store at room temperature away from moisture, heat and light.
  
  

Warning

• If you use mycin beyond the recommended time frame, there is a chance of a second infection. Drugs.com reports that this drug "... may cause a severe form of intestinal inflammation." If you have or have ever had liver disease, contact your doctor before regularly using mycin.