ciprofloxacin vs tizanidine
Side-by-side comparison of ciprofloxacin and tizanidine. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
major Known Drug Interaction
( 7.2 , 12.3 ) 7.1 Strong CYP1A2 Inhibitors Concomitant use of tizanidine with strong cytochrome P450 1A2 (CYP1A2) inhibitors (e.g., fluvoxamine, ciprofloxacin) is contraindicated.
Recommendation: Do not take these two medicines together. Ask your doctor for a different antibiotic or muscle relaxer.
Cipro
Zanaflex
Ciprofloxacin eye drops are an antibiotic medicine. They treat bacterial infections in the eye.
Tizanidine is a muscle relaxant. It is used to treat spasticity, which is when your muscles are tight or stiff.
These eye drops treat corneal ulcers and conjunctivitis (pink eye) caused by certain bacteria. Corneal ulcers are open sores on the eye. Conjunctivitis is an infection that makes the eye red and swollen.
Tizanidine is used to treat spasticity in adults. Spasticity is a condition where your muscles become stiff or tight. This medicine helps to relax your muscles and reduce the stiffness. It can help you move and feel more comfortable.
Ciprofloxacin is a fluoroquinolone antibiotic. It stops bacteria from growing and multiplying. This helps your body fight off the infection.
Tizanidine works by affecting certain chemicals in your brain. It is an alpha-2 adrenergic agonist. This action helps to reduce muscle spasms and tightness.
- • Burning or discomfort in the eye
- • White crystal-like build-up in the eye
- • Dry mouth
- • Sleepiness
- • Weakness
- • Dizziness
- Allergic reaction to the medicine 5,673
- Pain 5,586
- Tiredness 5,504
- Diarrhea 5,328
- Feeling sick to your stomach 5,300
- Tiredness 1,693
- Aches 1,615
- Feeling sick to your stomach 1,530
- Falling down 1,318
- Head pain 1,289
Do not inject this medicine into your eye. Some people have had very bad allergic reactions, even after the first dose. Get emergency help right away if you have trouble breathing, pass out, or have swelling of the face, throat, or tongue.
Tizanidine can cause low blood pressure, liver problems, and hallucinations. It can also make you very sleepy, especially if you drink alcohol or take other medicines that cause sleepiness. Your doctor should check your liver function before you start taking tizanidine and one month after you reach your highest dose. Do not stop taking tizanidine suddenly, as this can cause withdrawal symptoms.
Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. It is not known if ciprofloxacin eye drops will harm an unborn baby. It is also not known if ciprofloxacin passes into breast milk.
Tizanidine may harm your unborn baby. Talk to your doctor if you are pregnant or plan to become pregnant. It is not known if tizanidine passes into breast milk, so talk to your doctor if you are breastfeeding.
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How to Read This ciprofloxacin vs tizanidine Comparison
ciprofloxacin is classified in the Fluoroquinolone Antibiotic drug class, while tizanidine sits within the Central Alpha-2 Agonist (Muscle Relaxant) class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, ciprofloxacin has 27,391 submissions while tizanidine has 7,445. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known major interaction flagged in FDA labeling, attributed to ciprofloxacin stops the body from breaking down tizanidine. this can cause tizanidine to build up to dangerous levels in your system.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between ciprofloxacin and tizanidine - always consult your physician or pharmacist first.
Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.