Amoxicillin/clavulanic acid ratio 4:1 (Amx/Clv)

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    Update: January 2022

     

    Forms and strengths

    • 500 mg amoxicillin/125 mg clavulanic acid tablet
    • 250 mg amoxicillin/62.5 mg clavulanic acid per 5 ml, powder for oral suspension

    Dosage (expressed in clavulanic acid)

    • Child under 30 kg: 3 mg (0.25 ml)/kg of clavulanic acid 3 times daily, 60 minutes before each dose of meropenem
    • Adolescent ≥ 15 years and ≥ 30 kg and adult: 125 mg of clavulanic acid 2 times daily, 60 minutes before each dose of carbapenem
    • Maximum dose: 250 mg daily

     

    Weight
    (kg)

    Daily dose
    (mg)

    500 mg/125 mg
    tablet

    250 mg/62.5 mg per 5 ml
    oral suspension

    5

    50

    1.3 ml x 3

    6

    60

    1.5 ml x 3

    7

    70

    2 ml x 3

    8

    80

    2 ml x 3

    9

    90

    2.5 ml x 3

    10

    100

    2.5 ml x 3

    11

    110

    3 ml x 3

    12

    120

    3 ml x 3

    13

    130

    3.5 ml x 3

    14

    140

    3.5 ml x 3

    15

    150

    4 ml x 3

    16

    160

    4.5 ml x 3

    17

    170

    4.5 ml x 3

    18

    180

    5 ml x 3

    19

    190

    5 ml x 3

    20

    200

    5.5 ml x 3

    21

    210

    5.5 ml x 3

    22

    220

    6 ml x 3

    23

    230

    6 ml x 3

    24

    240

    6.5 ml x 3

    25

    250

    6.5 ml x 3

    26

    250

    6.5 ml x 3

    27

    250

    6.5 ml x 3

    28

    250

    6.5 ml x 3

    29

    250

    6.5 ml x 3

     

    30-35

    250

    1 tab x 2

    36-45

    250

    1 tab x 2

    46-55

    250

    1 tab x 2

    56-70

    250

    1 tab x 2

    > 70

    250

    1 tab x 2

     

    Contra-indications, adverse effects, precautions

    • Do not administer to penicillin-allergic patients and patients with history of hepatic disorders during a previous treatment with amoxicillin/clavulanic acid.
    • Administer with caution to patients with hypersensitivity to other betalactams (cross-hypersensitivity may occur) and to patients with hepatic impairment.
    • May cause: gastrointestinal disturbances (mainly diarrhoea), hypersensitivity reactions, hepatotoxicity.
    • For the management of adverse effects, see Appendix 17.
    • Pregnancy: no contra-indication
    • Breastfeeding: no contra-indication

    Monitoring

    • Symptomatic monitoring

    Patient instructions

    • Take with food.

    Storage

     
    – 
     
    –  Below 25 °C
    • Powder for oral suspension: between 15 °C and 25 °C
    • Once reconstituted, the oral suspension must be kept refrigerated (between 2 °C and 8 °C) and may be used for up to 7 days.