It is very important that your doctor check your or your child's progress while receiving this medicine. This will allow your doctor to see if the medicine is working properly and to decide if you should continue to receive it. Blood and urine tests may be needed to check for unwanted effects.
Do not take tizanidine (Zanaflex®) while you are receiving this medicine. Tell your doctor if you or your child are also using theophylline (Theo-Dur®) or other products that contain caffeine (eg, coffee, soda, chocolate). Using these medicines together may increase risks for more serious side effects.
Ciprofloxacin may rarely cause inflammation (tendinitis) or tearing of a tendon (the cord that attaches muscles to bones). This can occur while you are receiving the medicine or after your last dose. The risk of having tendon problems may be increased if you are over 60 years of age, are using steroid medicines (eg, dexamethasone, prednisolone, prednisone, Medrol®), have severe kidney problems, have a history of tendon problems (eg, rheumatoid arthritis), or if you have ever received an organ transplant (eg, heart, kidney, or lung). Check with your doctor right away if you have sudden pain or swelling in a tendon after exercise (eg, ankle, back of the knee or leg, shoulder, elbow, or wrist), bruise more easily after an injury, or are unable to bear weight or move the affected area. Refrain from exercise until your doctor says otherwise.
Tell your doctor right away if you or your child have any of the following symptoms while receiving this medicine: convulsions (seizures), feeling anxious, confused, or depressed, seeing, hearing, or feeling things that are not there, severe headache, trouble sleeping, or unusual thoughts or behaviors.
This medicine may cause serious allergic reactions, including anaphylaxis, which can be life-threatening and require immediate medical attention. Call your doctor right away if you or your child have a rash, itching, hives, hoarseness, trouble breathing, trouble swallowing, or any swelling of your hands, face, or mouth after receiving this medicine.
Serious skin reactions can occur with this medicine. Check with your doctor right away if you or your child have blistering, peeling, or loosening of the skin, red skin lesions, severe acne or skin rash, sores or ulcers on the skin, or fever or chills while you receiving this medicine.
Check with your doctor right away if you or your child have dark urine, clay-colored stools, abdominal or stomach pain, or yellow eyes or skin. These maybe symptoms of a serious liver problem.
Check with your doctor right away if you have bloody urine, a decrease in frequency or amount of urine, an increase in blood pressure, increased thirst, loss of appetite, lower back or side pain, nausea, swelling of the face, fingers, or lower legs, troubled breathing, unusual tiredness or weakness, vomiting, or weight gain. These could be symptoms of a serious kidney problem.
Ciprofloxacin injection may cause diarrhea, and in some cases it can be severe. It may occur 2 months or more after you stop using this medicine. Do not take any medicine to treat diarrhea without first checking with your doctor. Diarrhea medicines may make the diarrhea worse or make it last longer. If you have any questions about this or if mild diarrhea continues or gets worse, check with your doctor.
Tell your doctor right away if you or your child start having numbness, tingling, or burning pain in your hands, arms, legs, or feet. These may be symptoms of a condition called peripheral neuropathy.
Some people who receive ciprofloxacin injection may become more sensitive to sunlight than they are normally. Exposure to sunlight, even for brief periods of time, may cause severe sunburn, or skin rash, redness, itching, or discoloration. When you or your child begin receiving this medicine:
Stay out of direct sunlight, especially between the hours of 10:00 AM and 3:00 PM, if possible.
Wear protective clothing, including a hat and sunglasses.
Apply a sun block product that has a sun protection factor (SPF) of at least 15. Some people may require a product with a higher SPF number, especially if they have a fair complexion. If you have any questions about this, check with your doctor.
Do not use a sunlamp or tanning bed or booth.
If you have a severe reaction from the sun, check with your doctor.
Ciprofloxacin injection may cause some people to become dizzy, lightheaded, drowsy, or less alert than they are normally. Do not drive or do anything else that could be dangerous until you know how this medicine affects you. If these reactions are especially bothersome, check with your doctor.
If you are a diabetic patient taking diabetes medicine by mouth: Ciprofloxacin may cause hypoglycemia (low blood sugar) in some patients. Symptoms of low blood sugar must be treated before they lead to unconsciousness (passing out). Different people may feel different symptoms of low blood sugar. If you or your child experience symptoms of low blood sugar, check with your doctor right away.
Symptoms of low blood sugar can include: anxiety, behavior change similar to being drunk, blurred vision, cold sweats, confusion, cool pale skin, difficulty with concentrating, drowsiness, excessive hunger, headache, nausea, nervousness, rapid heartbeat, shakiness, or unusual tiredness or weakness.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.