Cipro (Ciprofloxacin)

Cipro (ciprofloxacin) is an antibiotic that belongs to a class of drugs called fluoroquinolones. It is used to treat a variety of bacterial infections by stopping the growth of bacteria.

What Is Cipro?

Cipro is commonly prescribed for infections such as urinary tract infections (UTIs), respiratory tract infections (such as bronchitis or pneumonia), skin infections, bone and joint infections, gastrointestinal infections (such as infectious diarrhea), and certain types of sexually transmitted infections.

Cipro works by inhibiting bacterial DNA gyrase and topoisomerase IV, enzymes critical for bacterial DNA replication, transcription, repair, and recombination. This inhibition leads to the death of the bacteria.

It is important to take Cipro exactly as prescribed by a healthcare provider and to complete the full course of treatment, even if symptoms improve before the medication is finished. Misuse or overuse of antibiotics can lead to antibiotic resistance, making infections harder to treat in the future.

NDC codes for ciprofloxacin produced by Pfizer are 0069-3241-15, 0069-3241-22, 0069-3342-15, 0069-3342-22, 0069-4395-19, 0069-4396-27.

NDC codes for ciprofloxacin produced by Par Pharmaceutical, Inc. are 10370-107-05, 10370-107-10, 10370-107-50, 10370-108-05, 10370-108-10.

Clinical Pharmacology

Ciprofloxacin is well absorbed from the gastrointestinal tract after oral administration, with a bioavailability of approximately 70-80%. Peak plasma concentrations are typically achieved 1-2 hours after oral dosing.

The medication has a large volume of distribution, indicating extensive distribution into tissues and body fluids. It penetrates well into tissues such as the lungs, kidneys, liver, gallbladder, and reproductive organs. It also crosses the blood-brain barrier and the placenta, and is distributed into breast milk. It is metabolized in the liver to form several metabolites, which have less antibacterial activity than the parent drug.

The primary route of elimination is renal, with about 40-50% of an oral dose excreted unchanged in the urine. The elimination half-life of ciprofloxacin is approximately 4-6 hours in patients with normal renal function. It is also excreted in bile and feces.

Ciprofloxacin has a broad spectrum of activity against both Gram-negative and Gram-positive bacteria. It is particularly effective against Gram-negative pathogens such as Escherichia coli, Pseudomonas aeruginosa, Neisseria gonorrhoeae, and Haemophilus influenzae. It has limited activity against anaerobic bacteria.

Ciprofloxacin exhibits concentration-dependent killing, meaning that its bactericidal activity increases with higher drug concentrations. The minimum inhibitory concentration (MIC) for ciprofloxacin varies depending on the bacterial species.

Cipro Forms and Ingredients

Cipro (ciprofloxacin) is available in various formulations, including tablets, extended-release tablets, oral suspension, and intravenous solutions. The ingredients vary slightly depending on the formulation. Below are the typical ingredients in each form of Cipro.

Cipro Tablets

The active ingredient is ciprofloxacin hydrochloride.

Inactive ingredients are microcrystalline cellulose, corn starch, silicon dioxide, crospovidone, magnesium stearate, hypromellose, titanium dioxide, polyethylene glycol, and water.

Cipro XR (Extended-Release) Tablets

The active ingredient is ciprofloxacin hydrochloride.

Inactive ingredients are microcrystalline cellulose, sodium alginate, sodium bicarbonate, magnesium stearate, colloidal silicon dioxide, hypromellose, titanium dioxide, polyethylene glycol, and propylene glycol.

Cipro Oral Suspension

The active ingredient is ciprofloxacin hydrochloride.

Inactive ingredients are microcrystalline cellulose, carboxymethylcellulose sodium, citric acid, hydroxypropyl methylcellulose, polysorbate 20, simethicone emulsion, sodium benzoate, sorbic acid, sucrose, water, and artificial flavoring (bubble gum flavor).

Cipro Intravenous Solution

The active ingredient is ciprofloxacin lactate.

Inactive ingredients are lactic acid, sodium chloride, and water for injection.

The active ingredient (ciprofloxacin hydrochloride or ciprofloxacin lactate) provides the therapeutic effect, while the inactive ingredients serve roles such as fillers, binders, stabilizers, preservatives, and flavoring agents.

What Are the Dosages of Cipro?

The dosage of Cipro (ciprofloxacin) varies depending on the type and severity of the infection, the patient's age, kidney function, and other individual factors. Here is the dosage information for Cipro presented in a table:

Complete the full course of therapy even if symptoms improve. Avoid excessive exposure to sunlight or UV light. Report any signs of tendon pain, swelling, or inflammation. Monitor for signs of serious side effects, including allergic reactions, central nervous system effects, and Clostridium difficile-associated diarrhea.

Consult a healthcare provider for specific dosage recommendations tailored to individual health needs and conditions.

Important Safety Information

Cipro (ciprofloxacin) is an effective antibiotic used to treat various bacterial infections, but it comes with important safety considerations.

• Ciprofloxacin is associated with an increased risk of tendinitis and tendon rupture, which can occur during or after treatment. Risk is higher in patients over 60 years, those taking corticosteroids, and those with kidney, heart, or lung transplants.
• It can cause permanent peripheral neuropathy (nerve damage). Symptoms include pain, burning, tingling, numbness, or weakness. Discontinue immediately if symptoms occur.
• It can cause central nervous system (CNS) effects, including seizures, increased intracranial pressure, tremors, restlessness, anxiety, confusion, hallucinations, and depression. Use with caution in patients with a history of seizures or other CNS disorders.
• It may exacerbate muscle weakness in people with myasthenia gravis. Avoid use in these patients.
• Serious and sometimes fatal allergic reactions can occur after the first dose. Discontinue immediately if a rash, hives, or other signs of an allergic reaction occur.
• It can cause moderate to severe sunburn-like reactions. Avoid excessive sunlight and UV light exposure, and use sunscreen and protective clothing.
• It can prolong the QT interval on an ECG, which may lead to an increased risk of serious heart rhythm disturbances (e.g., torsades de pointes). Use with caution in patients with risk factors such as certain heart conditions or concurrent use of drugs that prolong the QT interval.
• Clostridium difficile-associated diarrhea can occur during or after treatment. Symptoms include severe diarrhea, abdominal pain, and fever. Discontinue if significant diarrhea occurs and manage accordingly.
• Cases of severe liver injury have been reported. Discontinue if symptoms of liver disease (e.g., jaundice, dark urine, severe fatigue) occur.
• It can cause disturbances in blood sugar levels, including hyperglycemia and hypoglycemia. Diabetic patients should monitor blood glucose levels closely.
• It can cause muscle weakness in people with or without myasthenia gravis. Monitor patients for signs of muscle weakness.
• It is contraindicated in patients with a history of hypersensitivity to ciprofloxacin, other quinolones, or any component of the formulation.

Special Precautions

Pregnancy: Use only if the potential benefit justifies the potential risk to the fetus.

Nursing Mothers: Ciprofloxacin is excreted in human milk. Consider discontinuing nursing or the drug, considering the importance of the drug to the mother.

Pediatric Use: Safety and effectiveness in patients under 18 years old are limited to certain infections (e.g., complicated urinary tract infections and post-exposure inhalational anthrax).

Prescription

You need a prescription to buy Cipro (ciprofloxacin). It is a prescription-only medication in most countries, including the United States, due to the potential for serious side effects, the need for proper diagnosis and medical supervision, and the importance of appropriate use to prevent antibiotic resistance.

If you believe you need Cipro, you should consult a healthcare provider who can evaluate your symptoms and determine whether this antibiotic is appropriate for your condition. The healthcare provider can then provide a prescription if it is deemed necessary.

Contraindications to Cipro

Ciprofloxacin (Cipro) has several contraindications where its use is not recommended.

Patients with a history of hypersensitivity or allergic reactions to ciprofloxacin, other fluoroquinolones, or any components of the formulation.

Co-administration with tizanidine (Zanaflex) is contraindicated due to the risk of significant hypotension and sedation.

Patients with myasthenia gravis should avoid ciprofloxacin due to the risk of exacerbating muscle weakness.

Patients with a history of tendon disorders related to quinolone use should avoid ciprofloxacin.

Use with caution in patients with known or suspected CNS disorders (e.g., epilepsy, severe cerebral arteriosclerosis) due to the risk of seizures and other CNS effects.

Use with caution in patients with known QT prolongation, uncorrected electrolyte disorders (e.g., hypokalemia, hypomagnesemia), or those taking other medications that prolong the QT interval.

Side Effects

Ciprofloxacin (Cipro) can cause a range of side effects, some of which can be serious.

Common Side Effects

1. Gastrointestinal issues: nausea, diarrhea, vomiting, abdominal pain.
2. Central nervous system effects: dizziness, headache, drowsiness.
3. Skin reactions: rash, itching.

Serious Side Effects

1. Increased risk of tendinitis and tendon rupture, especially in the Achilles tendon. This can occur during treatment or even months after treatment has stopped.
2. Peripheral neuropathy: severe nerve pain, tingling, numbness, or weakness, which can be permanent.
3. Central nervous system effects: seizures, tremors, restlessness, confusion, hallucinations, depression, anxiety.
4. Serious skin reactions: Stevens-Johnson syndrome, toxic epidermal necrolysis.
5. Hypersensitivity reactions: severe allergic reactions, including anaphylaxis, which can be life-threatening. Symptoms include rash, itching, swelling, severe dizziness, and difficulty breathing.
6. Severe, persistent diarrhea that can lead to serious colon conditions.
7. Severe liver damage, which may present as jaundice, dark urine, severe fatigue, and abdominal pain.
8. QT interval prolongation, which can lead to serious heart rhythm disturbances (e.g., torsades de pointes).
9. Musculoskeletal issues: joint pain, muscle pain.
10. Psychiatric effects: psychosis, suicidal thoughts or actions.

Always report any new or worsening symptoms to a healthcare provider promptly.

Interactions of Cipro With Other Medicines

Ciprofloxacin (Cipro) can interact with various other medications, which may alter its effects or increase the risk of serious side effects.

1. Tizanidine (Zanaflex): Co-administration is contraindicated due to the risk of significant hypotension and sedation.
2. Theophylline: Ciprofloxacin can increase the plasma concentration of theophylline, leading to potential theophylline toxicity (e.g., seizures, arrhythmias). Monitor theophylline levels closely.
3. Warfarin (Coumadin): Ciprofloxacin may enhance the anticoagulant effects of warfarin, increasing the risk of bleeding. Monitor INR/PT levels frequently.
4. Antacids, sucralfate, and mineral supplements: These can interfere with absorption of ciprofloxacin. Take ciprofloxacin at least 2 hours before or 6 hours after these products.
5. Antiarrhythmics and other QT-prolonging drugs: Ciprofloxacin can prolong the QT interval, increasing the risk of serious heart rhythm disturbances. Use with caution in patients taking other QT-prolonging drugs (e.g., amiodarone, sotalol).
6. Nonsteroidal anti-inflammatory drugs (NSAIDs): Concurrent use may increase the risk of CNS stimulation and seizures.
7. Cyclosporine: Co-administration can lead to increased serum levels of cyclosporine and increased risk of nephrotoxicity. Monitor renal function closely.
8. Phenytoin (Dilantin): Ciprofloxacin can alter phenytoin levels, leading to either an increase or decrease in its effect. Monitor phenytoin levels closely.
9. Methotrexate: Ciprofloxacin can inhibit the renal tubular transport of methotrexate, potentially increasing the risk of methotrexate toxicity.
10. Glyburide: Co-administration can increase the risk of hypoglycemia. Monitor blood glucose levels closely.

Ciprofloxacin can cause both hyperglycemia and hypoglycemia. Diabetic patients should monitor their blood glucose levels closely. Concurrent use can increase the risk of tendinitis and tendon rupture. Ciprofloxacin can increase caffeine levels and prolong its effects, leading to increased risk of CNS stimulation (e.g., nervousness, insomnia).

Overdose of Cipro

An overdose of Cipro (ciprofloxacin) can be serious and requires immediate medical attention.

Management of ciprofloxacin overdose involves supportive care and symptomatic treatment. Seek emergency medical help or contact a poison control center immediately. In the case of a recent overdose, gastric lavage (stomach pumping) may be considered to remove unabsorbed drug from the stomach. Administer activated charcoal to decrease drug absorption if the overdose is identified within an hour of ingestion. Ensure adequate hydration to prevent crystalluria and protect kidney function. Provide appropriate symptomatic treatment for nausea, vomiting, seizures, and other symptoms. Monitor heart function and treat any cardiac arrhythmias. Monitor renal function and manage any signs of renal impairment.

To prevent an overdose, take ciprofloxacin exactly as prescribed by your healthcare provider. Do not take more than the recommended dose. Do not self-medicate or adjust the dosage without consulting a healthcare professional.

Storage

Proper storage of Cipro (ciprofloxacin) is essential to ensure its effectiveness and safety.

Store at room temperature, between 68°F and 77°F (20°C to 25°C). Brief storage at temperatures between 59°F and 86°F (15°C to 30°C) is acceptable.

Keep the medication in its original container to protect it from light. Store in a dry place, away from moisture and humidity.

Keep out of reach of children and pets to prevent accidental ingestion.

Benefits of Using Cipro