Amoxicillin 500mg + Clavulanate 125mg
(i)
ROUTE OF ADMINISTRATION
Oral
DOSAGE AND ADMINISTRATION
Oral
Adults and children over 12 years
Mild to moderate infections: One tablet 8 hourly.
Treatment with Health 2000 Amoxicillin 500mg + Clavulanate
125mg tablets should not be extended beyond 14 days without review.
Renal Impairment
Mild impairment (Creatinine clearance > 30ml/min) |
Moderate impairment (Creatinine clearance 10-30ml/min) |
Severe impairment (Creatinine clearance < 10ml/min) |
| No change in dosage | 1-2 tablets of 375 mg 12 hourly | 1 tablet of 375 mg 12 hourly. |
(ii)
THERAPEUTIC / DIAGNOSTIC CLAIMS
Upper respiratory tract infections e.g. Tonsillitis, sinusitis, otitis media.
Lower respiratory tract infections e.g. Acute and chronic bronchitis, lobar
and bronchopneumonia. Genitourinary tract infections e.g. Cystitis, urethritis,
pyelo nephritis, septic abortion, puerperal sepsis.
Skin and soft tissue infections e.g. Boils/abscesses, cellulitis, wound infections.
Bone and joint infections e.g. Osteomyelitis. Other infections e.g. Intra-abdominal
sepsis.
(iii) DESCRIPTION OF DOSAGE FORM
Health
2000 Amoxicillin 500mg + Clavulanate 125mg tablets is a formulation
of amoxicillin, a bactericidal broad-spectrum penicillin, and Potassium Clavulanate,
a progressive and irreversible inhibitor of beta-lactamase enzymes. The presence
of potassium Clavulanate protects amoxicillin from destruction and subsequent
loss of antibacterial activity by the beta-lactamase enzymes produced by many
Gram-negative and Gram-positive bacteria. The spectrum of amoxicillin is thus
widened to include organisms normally resistant by virtue of their ability
to produce beta-lactamase.
Health 2000 Amoxicillin 500mg + Clavulanate 125mg tablets
will not only eliminate primary pathogens but will also not be inactivated
by non-pathogenic beta-lactamase producing organisms at the site of infection.
The combination is also active against anaerobes.
(v) CONTRAINDICATIONS
History of allergic reaction to any of the penicillins.
WARNING AND PRECAUTIONS
DRUG
INTERACTIONS:
Probenecid: Probenecid slows the rate of renal tubular secretion of amoxicillin
and produces higher and prolonged serum concentration of amoxicillin.
Allopurinol: A significant increase in skin rashes is observed when allopurinol
and amoxicillin are given concurrently.
Disulfiram: This combination should not be used in patients receiving disulfiram.
Anti-coagulation therapy: This combination should be used with care in patients
on anti-coagulation therapy.
PREGNANCY:
Health 2000 Amoxicillin 500mg + Clavulanate 125mg tablets
has been used in human pregnancy in a limited number of cases, with no untoward
effect. However use of Health 2000 Amoxicillin 500mg + Clavulanate
125mg tablets in pregnancy is not recommended unless considered essential
by physician’s. As with all drugs, therapy with Health 2000
Amoxicillin 500mg + Clavulanate 125mg tablets during pregnancy should
be avoided if at all possible, especially during the first trimester.
NURSING
MOTHERS:
Ampicillin class of antibiotics are excreted in milk, therefore caution should
be exercised when Health 2000 Amoxicillin 500mg + Clavulanate 125mg
tablets is administered to nursing woman.
IN IMPAIRED RENAL FUNCTION: See dosage and administration.
HEPATIC
DYSFUNCTION:
Health 2000 Amoxicillin 500mg + Clavulanate 125mg tablets
should be used with care in patients with severe hepatic dysfunction as changes
in liver function tests have been observed.
BLEEDING
TIME AND PROTHROMBIN TIME:
These have been found to be increased in some patients receiving the combination.
(vi)
SIDE EFFECTS
Side effects as with amoxicillin, are uncommon and mainly of a mild and transitory
nature. Diarrhea, pseudomembranous colitis, indigestion, nausea, vomiting,
and candidiasis have been reported. Nausea, although uncommon, is more often
associated with higher oral dosages. If gastro-intestinal side effects occur
with oral therapy they may be reduced by taking Health 2000 Amoxicillin
500mg + Clavulanate 125mg tablets at start of the meals. Urticarial
and erythematous rashes sometimes occur but their incidence has been particularly
low. An articarial rash suggests penicillin hypersensitivity and treatment
should be discontinued. Erythematous rashes are frequently mild and transient
but may be severe when associated with infectious mononucleosis,in which case
treatment should be discontinued. Rare cases of erythema multiforme, Stevens-Johnson
syndrome and an occasional case of exfoliative dermatitis have been reported.
Serious and fatal hypersensitivity (anaphylactic reaction and angio-neurotic
oedema have been reported in patients on penicillin therapy. Although anaphylaxis
is more frequent following parental therapy, it has occurred in patients taking
oral penicillins. These reactions are more likely to occur in individuals
with a history of penicillin hypersensitivity and/or a history of sensitivity
to multiple allergens.
Transient leucopenia and thrombocytopenia have been reported during treatment with penicillins. Hepatitis and Cholestatic jaundice have been reported.
(vii) TOXIC EFFECTS
MUTAGENICITY
Studies have not been performed to date to evaluate the mutagenic potential
of amoxicillin and clavulanate potassium.
CARCINOGENICITY
Not expected to produce cancer in humans under occupational exposure conditions.
No components are listed as carcinogens by US.
TERATOGENICITY
Not expected to be genotoxic under occupational exposure conditions. Assessment
based upon effects of structurally similar substances. Not expected to produce
adverse effects on fertility or development under occupational exposure conditions.
No adverse effects have been reported following extensive use or exposure
in humans.