Gatrex F

Uses

Carefully consider the potential benefits and risks of Flurbiprofen and other treatment options before deciding to use Flurbiprofen . Use the lowest effective dose for the shortest duration consistent with individual patient treatment goals.

Flurbiprofen is used for:

• For relief of the signs and symptoms of rheumatoid arthritis.
• For relief of the signs and symptoms of osteoarthritis.

Gatifloxacin is used for the following infections:

• Acute bacterial exacerbation of chronic bronchitis due to Streptococcus pneumoniae, Haemophilus influenzae, Haemophilus parainfluenzae, Moraxella catarrhalis, or Staphylococcus aureus.
• Acute sinusitis due to Streptococcus pneumoniae or Haemophilus influenzae.
• Community-acquired pneumonia due to Streptococcus pneumoniae, Haemophilus influenzae, Haemophilus parainfluenzae, Moraxella catarrhalis, Staphylococcus aureus, Mycoplasma pneumoniae, Chlamydia pneumoniae, or Legionella pneumophila.
• Uncomplicated skin and skin structure infections (i.e., simple abscesses, furuncles, folliculitis, wound infections, and cellulitis) due to Staphylococcus aureus or Streptococcus pyogenes.
• Uncomplicated urinary tract infections due to Escherichia coli, Klebsiella pneumoniae, or Proteus mirabilis.
• Complicated urinary tract infections due to Escherichia coli, Klebsiella pneumoniae, or Proteus mirabilis.
• Pyelonephritis due to Escherichia coli.
• Uncomplicated urethral and cervical gonorrhea due to Neisseria gonorrhoeae.
• Acute, uncomplicated rectal infections in women due to Neisseria gonorrhoeae.

Gatrex F is also used to associated treatment for these conditions: Ankylosing Spondylitis (AS), Back Pain, Acute, Chronic Back Pain, Menstrual Distress (Dysmenorrhea), Muscle Spasms, Non-Articular Rheumatic Muscle Spasms, Osteoarthritis (OA), Pain, Pain, Inflammatory, Post-traumatic pain, Postoperative pain, Rheumatoid Arthritis, Spinal painBacterial Conjunctivitis, Ocular Infections, Irritations and Inflammations

How Gatrex F works

Similar to other NSAIAs, the anti-inflammatory effect of flurbiprofen occurs via reversible inhibition of cyclooxygenase (COX), the enzyme responsible for the conversion of arachidonic acid to prostaglandin G2 (PGG2) and PGG2 to prostaglandin H2 (PGH2) in the prostaglandin synthesis pathway. This effectively decreases the concentration of prostaglandins involved in inflammation, pain, swelling and fever. Flurbiprofen is a non-selective COX inhibitor and inhibits the activity of both COX-1 and -2. It is also one of the most potent NSAIAs in terms of prostaglandin inhibitory activity.

The bactericidal action of Gatifloxacin results from inhibition of the enzymes topoisomerase II (DNA gyrase) and topoisomerase IV, which are required for bacterial DNA replication, transcription, repair, and recombination.

Dosage

Gatrex F dosage

After observing the response to initial therapy with Flurbiprofen , the dose and frequency should be adjusted to suit an individual patient's needs. For relief of the signs and symptoms of rheumatoid arthritis or osteoarthritis, the recommended starting dose of Flurbiprofen is 200 to 300 mg per day, divided for administration two, three, or four times a day. The largest recommended single dose in a multiple-dose daily regimen is 100 mg.

Acute Bacterial Exacerbation of Chronic Bronchitis: 400 mg 5 days

Acute Sinusitis: 400 mg 10 days

Community-acquired Pneumonia: 400 mg 7-14 days

Uncomplicated Skin and Skin Structure Infections: 400 mg 7-10 days

Uncomplicated Urinary Tract Infections: 400 mg Single Dose or 200 mg 3 days

Complicated Urinary Tract Infections: 400 mg 7-10 days

Acute Pyelonephritis: 400 mg 7-10 days

Uncomplicated Urethral Gonnorrhea in Men: 400 mg Single dose

Gatifloxacin can be administered without regard to food.

Side Effects

Oedema, abdominal pain, constipation, diarrhoea, dyspepsia/heartburn, liver enzyme elevations, flatulence, nausea, vomiting, wt change, headache, nervousness, CNS stimulation (e.g. anxiety), CNS inhibition (e.g. somnolence), rhinitis, vision changes, dizziness/vertigo, tinnitus, signs and symptoms of UTI, rash. Ocular hyperaemia, eye irritation, fibrosis, miosis, mydriasis.

Gatifloxacin is generally well tolerated. The most common side effects that can occur while taking this drug are usually mild and include nausea, vomiting, stomach pain, diarrhea, dizziness,and headache .

Toxicity

LD₅₀=10 mg/kg (orally in dogs).

Selective COX-2 inhibitors have been associated with increased risk of serious cardiovascular events (e.g. myocardial infarction, stroke) in some patients. Current data is insufficient to assess the cardiovascular risk of flurbiprofen. Flurbiprofen may increase blood pressure and/or cause fluid retention and edema. Use caution in patients with fluid retention or heart failure. Risk of GI toxicity including bleeding, ulceration and perforation. Risk of direct renal injury, including renal papillary necrosis. Anaphylactoid and serious skin reactions (e.g. exfoliative dermatitis, Stevens-Johnson syndrome, toxic epidermal necrolysis) may occur. Common adverse events include abdominal pain, constipation, diarrhea, dyspepsia, flatulence, GI bleeding, GI perforation, nausea, peptic ulcer, vomiting, renal function abnormalities, anemia, dizziness, edema, liver function test abnormalities, headache, prolonged bleeding time, pruritus, rash, tinnitus. Although rarely documented in the case of flurbiprofen, oral propionic acid derivatives have been associated with a relatively high frequency of allergic reactions.

Precaution

Patients with known CV disease or risk factors for CV disease, fluid retention. Hepatic and renal impairment. Lactation.

Gatifloxacin should be administered with caution in the presence of renal insufficiency.

Interaction

Reduced antihypertensive effect of ACE inhibitors, angiotensin II receptor antagonists and β-blockers. Slight reduction in blood glucose concentration in patients with DM receiving certain antidiabetic agents (e.g. glyburide, metformin). Reduced diuretic effect of furosemide and thiazides. May increase toxicity of lithium and methotrexate. May increase risk of bleeding with antiplatelets, anticoagulants, SSRIs, corticosteroids.

Volume of Distribution

• 14 L [Normal Healthy Adults]
• 12 L [Geriatric Arthritis Patients]
• 10 L [End Stage Renal Disease Patients]
• 14 L [Alcoholic Cirrhosis Patients]
• 0.12 L/kg

Elimination Route

Fluribiprofen is rapidly and almost completely absorbed following oral administration. Peak plasma concentrations are reached 0.5 - 4 hours after oral administration.

Well absorbed from the gastrointestinal tract after oral administration with absolute bioavailability of gatifloxacin is 96%

Half Life

R-flurbiprofen, 4.7 hours; S-flurbiprofen, 5.7 hours

7-14 hours

Elimination Route

Flurbiprofen is poorly excreted into human milk. Following dosing with flurbiprofen, less than 3% of flurbiprofen is excreted unchanged in the urine, with about 70% of the dose eliminated in the urine as parent drug and metabolites. Renal elimination is a significant pathway of elimination of flurbiprofen metabolites.

Pregnancy & Breastfeeding use

Pregnancy Category C. Either studies in animals have revealed adverse effects on the foetus (teratogenic or embryocidal or other) and there are no controlled studies in women or studies in women and animals are not available. Drugs should be given only if the potential benefit justifies the potential risk to the foetus.

Pregnancy: Gatifloxacin should be used during pregnancy only if the potential benefit outweighs the potential risk to the fetus.

Lactation: It is not known whether Gatifloxacin is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when gatifloxacin is administered to a nursing woman.

Contraindication

Known hypersensitivity to flurbiprofen, history of asthma, urticaria, or allergic-type reactions precipitated by aspirin or other NSAIDs, NSAID-related history of GI bleeding or perforation, treatment of perioperative pain in the setting of CABG surgery. Pregnancy (3rd trimester) and lactation.

Gatifloxacin is contraindicated in patients with a history of hypersensitivity of Gatifloxacin, quinolone antimicrobial agents, or any other components of this product.

Special Warning

Renal Impaired patient:

• Creatinine Clearance 40 mL/min: 400 mg every day.
• Creatinine Clearance < 40 mL/min: 400 mg 200 mg every day.

Dialysis patients:

• Hemodialysis: 400 mg 200 mg every day.
• Continuous peritoneal dialysis: 400 mg 200 mg every day.

Pediatric use: The safety and effectiveness of Gatifloxacinacin in pediatric populations (<18 years of age) have not been established.

Acute Overdose

Symptoms: Headache, nausea, vomiting, epigastric pain, GI bleeding, diarrhoea, disorientation, excitation, coma, drowsiness, dizziness, tinnitus, fainting and occasionally convulsions, acute renal failure and liver damage.

Management: Supportive and symptomatic treatment. Admin activated charcoal w/in 1 hr after ingestion. In adults, gastric lavage should be considered.

Gatifloxacin exhibits a low potential for acute toxicity in animal studies. In the event of acute oral overdose, the stomach should be emptied by inducing vomiting or by gastric lavage. The patient should be carefully observed (including ECG monitoring) and given symptomatic and supportive treatment. Adequate hydration should be maintained.

Storage Condition

Store between 15-25° C.

Innovators Monograph

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