Like all medicines, ciprofloxacin can cause side effects, although not everyone gets them. Often side effects improve as your body gets used to the new medicine.
Tendon problems
Ciprofloxacin can cause tendon problems, eg, tendinitis or tendon rupture. The Achilles tendon in your ankle or calf is most likely to be affected but other tendons can also be involved.
You're at higher risk if you:
- are over 60 years of age
- are taking steroids (eg, prednisone)
- have chronic kidney disease or have had a kidney, heart or lung transplant.
Let your healthcare provider know straight away if you get pain and swelling in your joints. This can happen from a few hours after the first dose to several months after you've stopped the treatment. Read more about medicines and tendon problems.
Other problems
Side effects |
What should I do? |
- Feeling sick, nausea, stomach pains
- Mild diarrhoea (runny poos)
- Headache
- Tinnitus or ringing in the ears
- Problems sleeping
- Sore muscles
|
- These are quite common when you first start taking ciprofloxacin and usually go way with time.
- Tell your doctor if they continue.
- If you have sore muscles or joints, let your doctor know.
|
- Dizziness
- Sleepiness
- Confusion, anxiety or low mood
|
- Be careful when driving or using tools until you know how this medicine affects you.
- Avoid alcohol.
- If you are worried, feeling anxious or feeling low, talk to your doctor.
|
- Problems with your heart rate or breathing
- Swelling of your ankles
- Seizures
|
- Tell your doctor immediately or ring Healthline 0800 611 116.
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- Signs of problems with your liver, eg, yellowing of your skin or eyes, dark urine, pain in your abdomen
|
- Tell your doctor immediately or ring Healthline 0800 611 116.
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- Allergic reaction, eg, skin rash, itching, swelling of your lips, face, and mouth or difficulty breathing such as chest tightness, or wheezing
|
- Tell your doctor immediately or ring Healthline 0800 611 116.
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Read more about medicines and side effects and reporting a reaction you think might be a side effect.