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Betamox LA

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Amoxicillin · Norbrook Laboratories

1 form: suspension. In force in Georgia: 1 of 1 (veterinary register).

Forms and doses1 of 1 in force in Georgia

The dose from the product's label, by species and weight. Check the label of the pack you use.

Choose species and weight; the matching row will be highlighted.
Form Species Dose Frequency Georgia
Suspension · Cat Cat 0.1 ml/kg
Exact Betamox LA dog/cat label: 15 mg/kg = 0.1 ml/kg SC or IM; 20 kg dog 2.0 ml, 5 kg cat 0.5 ml. Weigh accurately, shake the vial, use a dry sterile needle and syringe, massage the site and use a different site for repeat administration. Do not give IV or intrathecally. If there is no distinct response after the second treatment, recheck the diagnosis and change treatment if indicated.
 · single dose; repeat after 48 hours only if necessary		 single dose; repeat after 48 hours only if necessary Georgia Yes, veterinary
Veterinary (National Food Agency)
In the register: ბეტამოქსი
№ 192-11
Verified on: 18 Oct 2026
Suspension · Cat Cat 0.1 ml/kg
Exact Betamox LA dog/cat label: 15 mg/kg = 0.1 ml/kg SC or IM; 20 kg dog 2.0 ml, 5 kg cat 0.5 ml. Weigh accurately, shake the vial, use a dry sterile needle and syringe, massage the site and use a different site for repeat administration. Do not give IV or intrathecally. If there is no distinct response after the second treatment, recheck the diagnosis and change treatment if indicated.
 · single dose; repeat after 48 hours only if necessary		 single dose; repeat after 48 hours only if necessary Georgia Yes, veterinary
Veterinary (National Food Agency)
In the register: ბეტამოქსი
№ 192-11
Verified on: 18 Oct 2026
Suspension · Dog Dog 0.1 ml/kg
Exact Betamox LA dog/cat label: 15 mg/kg = 0.1 ml/kg SC or IM; 20 kg dog 2.0 ml, 5 kg cat 0.5 ml. Weigh accurately, shake the vial, use a dry sterile needle and syringe, massage the site and use a different site for repeat administration. Do not give IV or intrathecally. If there is no distinct response after the second treatment, recheck the diagnosis and change treatment if indicated.
 · single dose; repeat after 48 hours only if necessary		 single dose; repeat after 48 hours only if necessary Georgia Yes, veterinary
Veterinary (National Food Agency)
In the register: ბეტამოქსი
№ 192-11
Verified on: 18 Oct 2026
Suspension · Dog Dog 0.1 ml/kg
Exact Betamox LA dog/cat label: 15 mg/kg = 0.1 ml/kg SC or IM; 20 kg dog 2.0 ml, 5 kg cat 0.5 ml. Weigh accurately, shake the vial, use a dry sterile needle and syringe, massage the site and use a different site for repeat administration. Do not give IV or intrathecally. If there is no distinct response after the second treatment, recheck the diagnosis and change treatment if indicated.
 · single dose; repeat after 48 hours only if necessary		 single dose; repeat after 48 hours only if necessary Georgia Yes, veterinary
Veterinary (National Food Agency)
In the register: ბეტამოქსი
№ 192-11
Verified on: 18 Oct 2026
Details: pack, label wording, sources, registration

Betamox LA, Suspension

Amoxicillin LA 150 mg/ml, long-acting suspension for injection
vetman assessment
vetman’s 10-point assessment brings together a product’s regulatory credibility, clinical efficacy, safety and practicality. Cost-effectiveness is assessed only when reliable data are available. It is informational and does not replace a veterinarian’s clinical judgment for an individual patient.
Dog Culture- and susceptibility-directed treatment of an infection caused by amoxicillin-susceptible bacteria when a long-acting parenteral formulation is clinically justified; not indiscriminate treatment of every broad label syndrome.
7.6/10
Good
vetman assessment

Betamox LA

Amoxicillin LA 150 mg/ml, long-acting suspension for injection
Assessed clinical scopeDog · Culture- and susceptibility-directed treatment of an infection caused by amoxicillin-susceptible bacteria when a long-acting parenteral formulation is clinically justified; not indiscriminate treatment of every broad label syndrome. · SC,IM
Care settingVeterinary clinic or supervised setting able to confirm bacterial indication, weigh accurately, use aseptic injection technique and reassess at or before 48 hours
vetman score 7.6/10 Good
Evidence confidence: Medium Georgia: Yes, veterinary · № 192-11 · Verified on 18 Oct 2026

A strong, exact-label long-acting option when parenteral amoxicillin is genuinely indicated for a susceptible bacterial infection. Its regulatory transparency, simple concentration-specific regimen and direct canine PK/PD support are strengths; the broad syndrome list is not a substitute for susceptibility, resistant isolates may fail, and absence of clinical outcome trials prevents a very-high score.

Regulatory and scientific credibility9.0/10

Exact Betamox LA has current Georgian registration and a current regulator-hosted UK authorisation for dogs and cats. The VMD dossier identifies composition, excipients, target species, indications, SC/IM route, concentration-specific dose, adverse-event frequencies, storage and 28-day in-use shelf life. US authorisation was not found, but this does not weaken the exact GE/UK label basis.

Clinical efficacy6.5/10

Amoxicillin is an established time-dependent aminopenicillin and the exact label supports 15 mg/kg SC/IM, repeatable after 48 hours for susceptible organisms. A recent five-dog 150 mg/ml SC PK/PD study supported prolonged exposure for susceptible Staphylococcus pseudintermedius, but resistant clinical isolates regrew and the study was not a clinical outcome trial. Broad legacy syndrome claims therefore require susceptibility and source-control context.

Safety and tolerability7.5/10

The exact label states a wide penicillin safety margin, safe use during pregnancy/lactation, rare hypersensitivity including anaphylactic shock and very rare local swelling/pruritus. Important residual risks are irreversible depot exposure after injection, penicillin/cephalosporin cross-allergy, accidental human self-injection, aseptic handling of a preservative-free multidose vial and dose/site error; quantified exact-product companion-animal safety series are limited.

Clinical practicality7.5/10

A ready-to-use 0.1 ml/kg suspension can replace repeated daily dosing and needs at most one label-directed repeat after 48 hours. It still requires accurate weighing, vigorous shaking, an appropriately graduated syringe for small volumes, dry sterile equipment, site massage and rotation, cold-independent light-protected storage below 25 C and disposal 28 days after opening.

Full-course cost-effectiveness-

Price was not assessed and is excluded from the overall score.

Important safety and use flags

  • Use only for a diagnosed or strongly supported bacterial infection caused by organisms likely to be susceptible to amoxicillin. Obtain culture and susceptibility whenever feasible and narrow or stop treatment when results do not support it.
  • Verify Betamox LA 150 mg/ml before use. Do not substitute Betamox once-daily 150 mg/ml, another manufacturer’s 150 mg/ml suspension, oral amoxicillin or amoxicillin-clavulanate: formulation, exposure and dosing interval differ.
  • Give dogs and cats 15 mg/kg = 0.1 ml/kg SC or IM; repeat after 48 hours only if necessary. Do not administer IV or intrathecally, and do not continue after a second ineffective treatment without rechecking diagnosis and susceptibility.
  • Do not use in a patient with known penicillin or cephalosporin hypersensitivity. Cross-reaction, urticaria and anaphylaxis are possible; stop treatment and provide emergency care for facial swelling, dyspnoea, hypotension or collapse.
  • Amoxicillin is ineffective against beta-lactamase-producing organisms and resistant isolates. Methicillin-resistant staphylococci, Pseudomonas and other intrinsically or acquired-resistant pathogens must not be inferred susceptible from a broad label list.
  • Review concurrent antimicrobials. Do not routinely combine a bactericidal beta-lactam with bacteriostatic tetracyclines, macrolides, chloramphenicol, lincosamides or sulfonamides without a documented microbiologic and clinical rationale.
  • Use aseptic technique and prevent accidental self-injection. Penicillin-sensitised staff should not handle the product; human rash requires medical advice, while facial/lip/eye swelling or breathing difficulty requires urgent medical attention.
  • Shake well, weigh accurately, use a dry sterile needle and appropriately graduated syringe, massage the site and use a different site for repeat dosing. Monitor for very rare swelling/pruritus and for pain, infection or sterile abscess.
  • The multidose vial contains no antimicrobial preservative. Swab the septum, protect from light, store below 25 C, record first opening and discard unused product 28 days later.
  • Reassess clinical response within 48 hours, including source control and the possibility of a nonbacterial diagnosis. Avoid prophylactic or unnecessarily prolonged exposure; aminopenicillins are EMA Category D (Prudence), not resistance-free.
Assessment sources
  1. Betamox LA VMD SPC2025
  2. Amoxicillin injections GE register2026
  3. Clamoxyl LA VMD label2022
  4. Canine LA amoxicillin PK/PD2024
  5. Feline amoxicillin PK2025
  6. EMA AMEG Category D2019
  7. Lihua amoxicillin 15%2026
  8. AMOXY 150 official register2026
Assessed: 22 Oct 2026The overall score uses 25/25/25/15/10 weights. An unassessed price is excluded and the remaining weights are proportionally renormalised.
Cat Culture- and susceptibility-directed treatment of an infection caused by amoxicillin-susceptible bacteria when a long-acting parenteral formulation is clinically justified; not indiscriminate treatment of every broad label syndrome.
7.5/10
Good
vetman assessment

Betamox LA

Amoxicillin LA 150 mg/ml, long-acting suspension for injection
Assessed clinical scopeCat · Culture- and susceptibility-directed treatment of an infection caused by amoxicillin-susceptible bacteria when a long-acting parenteral formulation is clinically justified; not indiscriminate treatment of every broad label syndrome. · SC,IM
Care settingVeterinary clinic or supervised setting able to confirm bacterial indication, weigh accurately, use aseptic injection technique and reassess at or before 48 hours
vetman score 7.5/10 Good
Evidence confidence: Medium Georgia: Yes, veterinary · № 192-11 · Verified on 18 Oct 2026

A well-documented exact-label long-acting option for selected susceptible feline bacterial infections, with direct recent slow-release feline PK evidence. The small study does not prove clinical outcomes or universal 48-hour coverage, so susceptibility, accurate small-volume dosing and early response review remain essential.

Regulatory and scientific credibility9.0/10

Exact Betamox LA has current Georgian registration and a current regulator-hosted UK authorisation for dogs and cats. The VMD dossier identifies composition, excipients, target species, indications, SC/IM route, concentration-specific dose, adverse-event frequencies, storage and 28-day in-use shelf life. US authorisation was not found, but this does not weaken the exact GE/UK label basis.

Clinical efficacy6.0/10

The exact label supports 15 mg/kg SC/IM, repeatable after 48 hours. A recent six-cat study using Trymox LA 150 mg/ml directly describes slow-release SC pharmacokinetics, but found a short plasma half-life and explicitly notes that dosing needs depend on bacterial susceptibility. It is not an exact-Betamox clinical outcome trial, so efficacy confidence is lower than the broad label wording suggests.

Safety and tolerability7.5/10

The exact label states a wide penicillin safety margin, safe use during pregnancy/lactation, rare hypersensitivity including anaphylactic shock and very rare local swelling/pruritus. Important residual risks are irreversible depot exposure after injection, penicillin/cephalosporin cross-allergy, accidental human self-injection, aseptic handling of a preservative-free multidose vial and dose/site error; quantified exact-product companion-animal safety series are limited.

Clinical practicality7.5/10

A ready-to-use 0.1 ml/kg suspension can replace repeated daily dosing and needs at most one label-directed repeat after 48 hours. It still requires accurate weighing, vigorous shaking, an appropriately graduated syringe for small volumes, dry sterile equipment, site massage and rotation, cold-independent light-protected storage below 25 C and disposal 28 days after opening.

Full-course cost-effectiveness-

Price was not assessed and is excluded from the overall score.

Important safety and use flags

  • Use only for a diagnosed or strongly supported bacterial infection caused by organisms likely to be susceptible to amoxicillin. Obtain culture and susceptibility whenever feasible and narrow or stop treatment when results do not support it.
  • Verify Betamox LA 150 mg/ml before use. Do not substitute Betamox once-daily 150 mg/ml, another manufacturer’s 150 mg/ml suspension, oral amoxicillin or amoxicillin-clavulanate: formulation, exposure and dosing interval differ.
  • Give dogs and cats 15 mg/kg = 0.1 ml/kg SC or IM; repeat after 48 hours only if necessary. Do not administer IV or intrathecally, and do not continue after a second ineffective treatment without rechecking diagnosis and susceptibility.
  • Do not use in a patient with known penicillin or cephalosporin hypersensitivity. Cross-reaction, urticaria and anaphylaxis are possible; stop treatment and provide emergency care for facial swelling, dyspnoea, hypotension or collapse.
  • Amoxicillin is ineffective against beta-lactamase-producing organisms and resistant isolates. Methicillin-resistant staphylococci, Pseudomonas and other intrinsically or acquired-resistant pathogens must not be inferred susceptible from a broad label list.
  • Review concurrent antimicrobials. Do not routinely combine a bactericidal beta-lactam with bacteriostatic tetracyclines, macrolides, chloramphenicol, lincosamides or sulfonamides without a documented microbiologic and clinical rationale.
  • Use aseptic technique and prevent accidental self-injection. Penicillin-sensitised staff should not handle the product; human rash requires medical advice, while facial/lip/eye swelling or breathing difficulty requires urgent medical attention.
  • Shake well, weigh accurately, use a dry sterile needle and appropriately graduated syringe, massage the site and use a different site for repeat dosing. Monitor for very rare swelling/pruritus and for pain, infection or sterile abscess.
  • The multidose vial contains no antimicrobial preservative. Swab the septum, protect from light, store below 25 C, record first opening and discard unused product 28 days later.
  • Reassess clinical response within 48 hours, including source control and the possibility of a nonbacterial diagnosis. Avoid prophylactic or unnecessarily prolonged exposure; aminopenicillins are EMA Category D (Prudence), not resistance-free.
Assessment sources
  1. Betamox LA VMD SPC2025
  2. Amoxicillin injections GE register2026
  3. Clamoxyl LA VMD label2022
  4. Canine LA amoxicillin PK/PD2024
  5. Feline amoxicillin PK2025
  6. EMA AMEG Category D2019
  7. Lihua amoxicillin 15%2026
  8. AMOXY 150 official register2026
Assessed: 22 Oct 2026The overall score uses 25/25/25/15/10 weights. An unassessed price is excluded and the remaining weights are proportionally renormalised.
Composition / strength
Amoxicillin150 mg/ml
Formulation Type
Suspension
Administration route
Subcutaneous, Intramuscular
Manufacturer
Norbrook Laboratories · United Kingdom
Registration
Georgia Yes, veterinary
Veterinary (National Food Agency)
In the register: ბეტამოქსი
№ 192-11
Verified on: 18 Oct 2026
 EU Yes, veterinary
Verified on: 15 Oct 2026
 UK Yes, veterinary
Verified on: 15 Oct 2026
 US No
Verified on: 15 Oct 2026
Controlled in Georgia
No
Checked against the narcotics law, Annex 1, lists I-IV, and Order No. 22/n.
Verified on: 16 Oct 2026
DoseSpeciesWeightRouteFrequencySource
0.1 ml/kg
Exact Betamox LA dog/cat label: 15 mg/kg = 0.1 ml/kg SC or IM; 20 kg dog 2.0 ml, 5 kg cat 0.5 ml. Weigh accurately, shake the vial, use a dry sterile needle and syringe, massage the site and use a different site for repeat administration. Do not give IV or intrathecally. If there is no distinct response after the second treatment, recheck the diagnosis and change treatment if indicated.
 Cat Any weight Subcutaneous single dose; repeat after 48 hours only if necessary
Betamox LA VMD SPC
Official product label (SPC)
Approved by a medicines regulator as part of the product's authorisation. It applies to that product as authorised there.
Betamox LA 150 mg/ml Suspension for Injection - Summary of Product Characteristics
UK Veterinary Medicines Directorate, 2025
0.1 ml/kg
Exact Betamox LA dog/cat label: 15 mg/kg = 0.1 ml/kg SC or IM; 20 kg dog 2.0 ml, 5 kg cat 0.5 ml. Weigh accurately, shake the vial, use a dry sterile needle and syringe, massage the site and use a different site for repeat administration. Do not give IV or intrathecally. If there is no distinct response after the second treatment, recheck the diagnosis and change treatment if indicated.
 Cat Any weight Intramuscular single dose; repeat after 48 hours only if necessary
Betamox LA VMD SPC
Official product label (SPC)
Approved by a medicines regulator as part of the product's authorisation. It applies to that product as authorised there.
Betamox LA 150 mg/ml Suspension for Injection - Summary of Product Characteristics
UK Veterinary Medicines Directorate, 2025
0.1 ml/kg
Exact Betamox LA dog/cat label: 15 mg/kg = 0.1 ml/kg SC or IM; 20 kg dog 2.0 ml, 5 kg cat 0.5 ml. Weigh accurately, shake the vial, use a dry sterile needle and syringe, massage the site and use a different site for repeat administration. Do not give IV or intrathecally. If there is no distinct response after the second treatment, recheck the diagnosis and change treatment if indicated.
 Dog Any weight Subcutaneous single dose; repeat after 48 hours only if necessary
Betamox LA VMD SPC
Official product label (SPC)
Approved by a medicines regulator as part of the product's authorisation. It applies to that product as authorised there.
Betamox LA 150 mg/ml Suspension for Injection - Summary of Product Characteristics
UK Veterinary Medicines Directorate, 2025
0.1 ml/kg
Exact Betamox LA dog/cat label: 15 mg/kg = 0.1 ml/kg SC or IM; 20 kg dog 2.0 ml, 5 kg cat 0.5 ml. Weigh accurately, shake the vial, use a dry sterile needle and syringe, massage the site and use a different site for repeat administration. Do not give IV or intrathecally. If there is no distinct response after the second treatment, recheck the diagnosis and change treatment if indicated.
 Dog Any weight Intramuscular single dose; repeat after 48 hours only if necessary
Betamox LA VMD SPC
Official product label (SPC)
Approved by a medicines regulator as part of the product's authorisation. It applies to that product as authorised there.
Betamox LA 150 mg/ml Suspension for Injection - Summary of Product Characteristics
UK Veterinary Medicines Directorate, 2025
Active substance doses, with sources
Active substance Amoxicillin
Dose calculatorCalculates the active-substance amount; it is not a prescription.
PatientSpecies and weight will be filled in automatically in other calculators.
Selected dose
Dose Species Indication Route Frequency Source
10 mg/kg Dog, Cat Bacterial Infection By mouth 2 times daily
VMD SPC 2025
Official product label (SPC), VMD, UK
Approved by the UK Veterinary Medicines Directorate (VMD) as part of the product's authorisation. It applies to that product as authorised there.
Synulox palatable tablets 200 mg/50 mg - Summary of Product Characteristics
UK Veterinary Medicines Directorate, 2025
20 mg/kg Dog Respiratory Tract Infection By mouth 2 times daily
VMD SPC 2025
Official product label (SPC), VMD, UK
Approved by the UK Veterinary Medicines Directorate (VMD) as part of the product's authorisation. It applies to that product as authorised there.
Synulox Palatable Drops 40 mg/ml + 10 mg/ml, Powder for Oral Suspension - Summary of Product Characteristics
UK Veterinary Medicines Directorate, 2025
7 mg/kg Dog, Cat Bacterial Infection Subcutaneous once daily for up to 5 days
Betamox 150 mg/ml, VMD SPC 2026
Official product label (SPC), VMD, UK
Approved by the UK Veterinary Medicines Directorate (VMD) as part of the product's authorisation. It applies to that product as authorised there.
Betamox 150 mg/ml Suspension for Injection - Summary of Product Characteristics
UK Veterinary Medicines Directorate, 2026

Known Contraindications

  • Critical
    Do not use in cases of hypersensitivity to the active substances, other substances of the beta-lactam group or to any of the excipients.
    Sources: VMD SPC · VMD
  • Critical
    Do not use in animals with severe renal impairment with anuria or oliguria.
    Sources: VMD SPC · VMD
  • Warning
    The safety of the veterinary medicinal product has not been established during pregnancy and lactation.
    Sources: VMD SPC · VMD
  • Warning
    The safety of the veterinary medicinal product has not been established during pregnancy and lactation.
    Sources: VMD SPC · VMD

Known Drug Interactions

  • Major warning Amoxicillin + Doxycycline
    The bactericidal effect of amoxicillin may be inhibited by the concomitant use of bacteriostatic antimicrobials.
    Recommendation: If both are required, support the choice with culture and susceptibility results. Otherwise, choose one mechanism.
    Sources: VMD SPC · VMD
  • Major warning Amoxicillin + Oxytetracycline
    Do not give oxytetracycline at the same time as bactericidal antimicrobials such as penicillins or cephalosporins because their antibacterial effects may be antagonistic.
    Recommendation: Do not administer concurrently.
  • Minor warning Amoxicillin + Dihydrostreptomycin
    Penicillins may increase the effect of aminoglycosides.
    Recommendation: An enhanced effect is expected; monitor for aminoglycoside toxicity. Do not mix in the same syringe.
    Sources: VMD SPC · VMD
  • Minor warning Amoxicillin + Trimethoprim/Sulfonamide
    Concurrent use of bactericidal beta-lactam antibiotics and bacteriostatic antimicrobials such as sulfonamides is generally not recommended because their effects may be antagonistic.
    Recommendation: Avoid concomitant administration.

Products are connected by name, active ingredients, or therapeutic group. They are not direct substitutes for one another.

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This reference is still growing. Missing a product? Let us know. · Report an error or request an addition · Updated: 18 Oct 2026

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The dose for the patient's weight, registration in Georgia and controlled status, right on the prescription.

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