Aceclofenac + Rabeprazole Pharmacology

Aceclofenac + Rabeprazole

About Aceclofenac + Rabeprazole
N/A
Mechanism of Action of Aceclofenac + Rabeprazole
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Pharmacokinets of Aceclofenac + Rabeprazole
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Onset of Action for Aceclofenac + Rabeprazole
N/A
Duration of Action for Aceclofenac + Rabeprazole
N/A
Half Life of Aceclofenac + Rabeprazole
N/A
Side Effects of Aceclofenac + Rabeprazole
1.Diarrhoea
2.Nausea
3.Dyspepsia,
4.Abdominal pain
5.Dizziness
6.Rashes
7.Potentially Fatal: nephrotoxicity; blood dyscrasias.
Contra-indications of Aceclofenac + Rabeprazole
1.Hypersensitivity to aspirin or NSAIDS
2.Moderate to severe renal impairment
3.History of peptic ulceration or GI bleed
4.Patients with infections.
Special Precautions while taking Aceclofenac + Rabeprazole
1.Cautiously administer to patients with GI disease
2.Ulcerative colitis
3.Crohn's disease
4.Haematological abnormalities
5.Hepatic porphyria
6.History of bronchial asthma
7.History of heart failure or hypertension
8.Mild renal, hepatic or cardiac impairment
9.May impair ability to drive or operate machinery
Pregnancy Related Information
Contra indicated in third trimester

Old Age Related Information
Use with caution
Breast Feeding Related Information
N/A
Children Related Information
N/A
Indications for Aceclofenac + Rabeprazole
1.Ankylosing spondylitis
2.Osteoarthritis
3.Rheumatoid arthritis
Interactions for Aceclofenac + Rabeprazole
N/A
Typical Dosage for Aceclofenac + Rabeprazole
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Schedule of Aceclofenac + Rabeprazole
N/A
Storage Requirements for Aceclofenac + Rabeprazole
N/A
Effects of Missed Dosage of Aceclofenac + Rabeprazole
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Effects of Overdose of Aceclofenac + Rabeprazole
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Aceclofenac

About Aceclofenac
NSAID, Analgesic, Antiinflammatory, Anti arthritic.
Mechanism of Action of Aceclofenac
This drug has several mechanism of action.
1. It inhibits cyclooxygenase (COX) activity and to suppress the PGE2 production by inflammatory cells, by inhibiting IL-Beta & TNF in the inflammatory cells (Intracellular Action).
2. It blocks degeneration and stimulates synthesis of extra cellular matrix of cartilages by inhibiting the action of different cytokines.
3. Drug and its metabolites inhibit IL-6 production by human chondrocytes. This leads to inhibition of increase of inflammatory cells in synovial tissue, inhibition of IL-1 amplification, inhibition of increased MMP synthesis and thus ensuring proteoglycan production.
4. It inhibits IL-1 and TNF production by human chondrocytes, inflammatory cells and synovial cells and therefore blocks suppression of GAG and collagen synthesis and stimulates growth factors mediated synthesis of GAG and collagen.
5. 4`-hydroxyaceclofenac a metabolite of aceclofenac inhibits pro MMP1 and pro MMP3 produced by synovial cells (Rheumatoid Synovial Cells) in serum and in synovial fluid and thus inhibits progressive joint destruction by MMPs.
6. Aceclofenac inhibits Neutrophil Adhesion & Accumulation at the inflammatory site in the early phase and thus blocks the pro-inflammatory actions of Neutrophils.
7. Aceclofenac is also an NSAID with greater COX-2 specificity
Pharmacokinets of Aceclofenac
Absorption- It is rapidly and completely absorbed after oral administration
Distribution- Widely distributed in the body as protein-bound form. It is highly protein-bound (>99.7%). Aceclofenac penetrates into the synovial fluid, where the concentrations reach approximately 60% of those in plasma.
Metabolism- Metabolized into metabolites in the liver. Main metabolite is 4-hydroxyaceclofenac
Excretion- It is excreted through urine mainly as conjugated hydroxymetabolites
Onset of Action for Aceclofenac
N/A
Duration of Action for Aceclofenac
N/A
Half Life of Aceclofenac
The mean plasma elimination half-life is 4 - 4.3 hours
Side Effects of Aceclofenac
1. Dyspepsia
2. Abdominal pain
3. Dizziness
4. Vertigo
5. Pruritis
6. Rash
7. Dermatitis
8. Nausea
9. Diarrhoea
10. Flatulence
11. Gastritis
12. Constipation
13. Vomiting
14. Ulcerative stomatitis
15. Elevation of circulating levels of hepatic enzymes.
Contra-indications of Aceclofenac
1. Hypersensitivity to the drug
2. Bleeding from the stomach or intestines
3. Moderate to severely decreased kidney function
4. Hypersensitivity to other NSAIDs
5. Active peptic ulcer
Special Precautions while taking Aceclofenac
1. Hepatic porphyria
2. Bleeding tendencies
3. Blood disorders
4. Crohn`s disease
5. Decreased heart function
6. History of peptic ulcers
7. Inflammation of the bowel and back passage
8. Mildly decreased kidney function
9. Recent major surgery
10. Stomach disorders
11. Decreased liver function
12. Intestinal disorders
Pregnancy Related Information
Contraindicated.
Old Age Related Information
Use with caution.
Breast Feeding Related Information
Contraindicated.
Children Related Information
Use with caution
Indications for Aceclofenac
1. Ankylosing spondylitis
2. Osteoarthritis
3. Symptomatic treatment of pain and inflammation in Post-Traumatic pain
4. Cervical pain
5. Low back pain
6. Acute gout
Interactions for Aceclofenac
Lithium, digoxin and methotrexate: Aceclofenac may increase plasma concentrations of lithium, digoxin and methotrexate.
Anticoagulants: Activity of anticoagulants may be increased.
Diuretics : Aceclofenac inhibits the activity of diuretics. When concomitantly administrated with potassium sparing diuretics, serum potassium should be monitored.
Cyclosporin: Aceclofenac may enhance cyclosporin nephrotoxicity.
Quinolones : Aceclofenac may precipitate convulsions when coadministered with quinolone antibiotics.
Typical Dosage for Aceclofenac
Oral-
Adult (general dose)-
100mg twice daily
Schedule of Aceclofenac
H
Storage Requirements for Aceclofenac
Store below 25?C
Effects of Missed Dosage of Aceclofenac
Take the missed dose as soon as noticed and if it is the time for next dose then skip the missed dose. Continue the regular schedule. Do not double the dose.
Effects of Overdose of Aceclofenac
Give symptomatic and supportive treatment. Induce gastric lavage and administer charcoal in repeated doses. Treated with antacid if necessary.

Rabeprazole

About Rabeprazole
Benzimidazole derivative, Proton Pump Inhibitor, Antiulcer.
Mechanism of Action of Rabeprazole
Rabeprazole sodium is a proton pump inhibitor. It is a prodrug. After administration it diffuses in to the parietal cell of the stomach and accumulates in the secretory canaliculi. In the acidic medium Rabeprazole is converted to sulfenamide. This sulfenamide covalently interacts with sulfhydryl (SH) group in the proton pump (H+ K+ATPase) and inhibits the exchange of extracellular K+ for intracellular H+ ion. Rabeprazole sodium irreversibly inhibits proton pumps activity and decreases gastric acid secretion. Rabeprazole produces fastest acid suppression and helps in mucin synthesis.
Pharmacokinets of Rabeprazole
Absorption: Rabeprazole sodium is well absorbed after oral administration and its bioavailability is about 50% since it undergoes first pass metabolism. Distribution: It is widely distributed in the body in protein bound form. Metabolism: Rabeprazole sodium is extensively metabolised in the liver. Excretion: It is excreted mainly in the urine and small amount in faeces.
Onset of Action for Rabeprazole
1hour
Duration of Action for Rabeprazole
1 day
Half Life of Rabeprazole
1 - 2 hours
Side Effects of Rabeprazole
1. Diarrhoea
2. Nausea
3. Headache
4. Vomiting
5. Abdominal pain
6. Dizziness
7. Flatulence
8. Constipation
9. Dyspepsia
10. Flu like syndrome
11. Insomnia
12. Back pain
13. Cough
14. Rhinitis
15. Pharyngitis
16. Rash

Contra-indications of Rabeprazole
1. Hypersensitivity to Rabeprazole sodium
Special Precautions while taking Rabeprazole
1. Hepatic impairment
2. Monitor gastric malignancy

Pregnancy Related Information
Contraindicated
Old Age Related Information
Use with caution
Breast Feeding Related Information
Contraindicated
Children Related Information
Contraindicated
NEONATES: Contraindicated
Indications for Rabeprazole
1. Active Duodenal ulcer
2. Benign Gastric ulcer
3. Zollinger- Ellison syndrome
4. Erosive Gastroesophageal reflux disease
Interactions for Rabeprazole
Ketoconazole : Coadministration of rabeprazole sodium results in a 33% decrease in ketoconazole levels.
Digoxin : Increase in trough digoxin levels in normal subjects.
Typical Dosage for Rabeprazole
Oral
Adult: 10 - 20 mg / day drug to be taken before breakfast.
Duodenal ulcer: 20 mg / day in the morning for 1 month if needed dose can be continuing for 1more month.
Benign Gastric ulcer: 20 mg / day in the morning for 6 weeks if needed dose can be continuing for 6 more weeks.
Zollinger- Ellison syndrome: Initial dose: 60 mg / day if needed increase the dose up to 120 mg / day in 2 divided doses.
Erosive Gastroesophageal reflux disease: 20mg / day for 1-2 months.
Gastroesophageal reflux disease long term management: 10-20 mg once daily before breakfast for 1 year

Children: not recommended
Schedule of Rabeprazole
H
Storage Requirements for Rabeprazole
Store at 15 - 30 degree C in a tightly closed container. Protect from light.
Effects of Missed Dosage of Rabeprazole
Take the missed dose as soon as noticed and if it is the time for next dose then skip the missed dose. Continue the regular schedule. Do not double the dose.
Effects of Overdose of Rabeprazole
Give supportive measures and symptomatic treatment.

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