Skip to main content

How long does ciprofloxacin stay in your system when finished?

Medically reviewed by Drugs.com. Last updated on Aug 19, 2024.

Official Answer by Drugs.com

Ciprofloxacin should be out of your system around 22 hours after your last dose. The serum elimination half-life of ciprofloxacin with normal kidney function is approximately 4 hours. This is the time it takes for your body to reduce the plasma levels by half. It usually takes around 5.5 x half-lifes for a drug to be completely eliminated from your system (5.5 x 4= 22 hours).

Other factors also need to be taken into account and include:

  1. How much and how often you have taken the drug.
  2. Your metabolic rate – a slower metabolism will increase the time a drug remains in your system.
  3. Your age and health – older age and poor health will generally increase the time the drug stays in your system.
  4. Body mass – generally the bigger you are the longer a drug will remain in your system.

Click on this link for more information: https://www.drugs.com/pro/ciprofloxacin.html

Read next

What happens if antibiotics don’t work for UTI?

If an antibiotic does not treat a urinary tract infection (UTI), the bacteria may have developed antibiotic resistance and your infection may worsen. A UTI may start as a bladder infection (cystitis) and could worsen into a more serious kidney infection (pyelonephritis) or urosepsis (a serious infection throughout your body) that is a medical emergency. Contact your doctor.

Continue reading

How long does Cipro take to work?

Although ciprofloxacin starts working within hours of taking it, you may not notice an improvement in your symptoms for 2 to 3 days. For some infections, such as osteomyelitis (a bone infection), it may take up to a week before you show any improvement. Continue reading

What types of infections does Cipro treat?

Cipro (ciprofloxacin), a fluoroquinolone antibiotic, is used to treat a wide range of bacterial infections, including:

  • pneumonia and certain lower respiratory tract infections
  • certain urinary tract infections
  • gonorrhea
  • infections of the digestive tract (for example, diverticulitis) - (used in combination with metronidazole)
  • serious skin, bone and joint infections
  • prostate gland infections
  • infectious diarrhea
  • typhoid fever (enteric fever)
  • kidney infections (pyelonephritis)
  • inhalational anthrax (post-exposure)
  • certain types of plague (treatment and prevention).
Continue reading

See also:

Related medical questions

Drug information

Related support groups