POM-V Prescription Required

Gamrozyne 150 mg/ml Solution for Injection for Cattle, Sheep and Pigs

Active ingredient: Gamithromycin

Form

Injection

Species

Cattle Pigs Sheep

Manufacturer

Bimeda Animal Health Limited

VMD MA No.

50146/5006

What it's used for

The presence of the disease in the group should be established before the product is used. Pigs: Treatment of swine respiratory disease (SRD) associated wi...

Full indications, dosage and side effects ↓

View official SPC (PDF)

The prescription itself has a price. See what practices near you charge for a consultation and the written prescription fee.

Paying less for Gamithromycin

1

Ask your vet for a written prescription

They must provide one on request. Under the CMA Order the fee is capped at £21 from 2027.
2

Fill it at a registered online retailer

The CMA found online pharmacies 50–60% cheaper than practice dispensing on common medicines — typically £200–£300 a year.

Your prescription rights → VMD register of retailers →

Prescription required

Your vet must provide a written prescription on request. You can then purchase from any licensed online retailer.

Clinical information

Gamrozyne 150 mg/ml Solution for Injection for Cattle, Sheep and Pigs — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.

The presence of the disease in the group should be established before the product is
used.

Pigs:
Treatment of swine respiratory disease (SRD) associated with
pleuropneumoniae, Bordetella bronchiseptica, Glaesserella parasuis, and
Pasteurella multocida.
AN: 01449/2023 & 01461/2023
Sheep:
Treatment of infectious pododermatitis (foot rot) associated with virulent
Dichelobacter nodosus and Fusobacterium necrophorum requiring systemic
treatment.

correct dose, body weight should be determined as accurately as possible.
Cattle and Sheep:
Subcutaneous injection.
For treatment of cattle over 250 kg and sheep over 125 kg body weight, divide the
dose so that no more than 10 ml (cattle) or 5 ml (sheep) are injected at a single site.
Pigs:
Intramuscular injection.
The injection volume should not exceed 5 ml per injection site.
The cap may be safely punctured up to 30 times with a 18G needle. In the event of
using a 16G needle or for multiple vial entry, an automatic dosing device shall be
used to avoid excessive broaching of the stopper.

Do not use in cases of hypersensitivity to the active substance or to any of the
excipients or to other macrolide antibiotics.
Do not use this veterinary medicinal product simultaneously with other macrolides or
lincosamides.

Cattle:
Very common
(>1 animal / 10 animals treated):
Injection site swelling
, injection site pain
1
Typically resolves within 3 to 14 days but may persist for up to 35 days.
Slight pain may develop for 1 day.
Sheep:
Common
(1 to 10 animals / 100 animals treated):
Injection site swelling
, injection site pain
3
Mild to moderate and typically resolves within 4 days.
Slight pain may develop for 1 day.
Pigs:
Common
(1 to 10 animals / 100 animals treated):
Injection site swelling
5
Mild to moderate and typically resolves within 2 days.
Reporting adverse events is important. It allows continuous safety monitoring of a
veterinary medicinal product. Reports should be sent, preferably via a veterinarian,
to either the marketing authorisation holder or the national competent authority via
the national reporting system. See the package leaflet for respective contact details.

Cattle, pigs and sheep:
Cross-resistance has been shown between gamithromycin and macrolides or
lincosamides. Use of the veterinary medicinal product should be carefully considered
when susceptibility testing has shown resistance to macrolides or lincosamides
because its effectiveness may be reduced.
Avoid simultaneous administration of antimicrobials with a similar mode of action
such as other macrolides or lincosamides.
Sheep:
The efficacy of antimicrobial treatment of foot rot might be reduced by other factors,
such as wet environmental conditions, as well as inappropriate farm management.
Treatment of foot rot should therefore be undertaken along with other flock
management tools, for example providing dry environment. Antibiotic treatment of
benign foot rot is not considered appropriate.

Special precautions for safe use in the target species:
Use of the product should be based on identification and susceptibility testing of the
target pathogen(s). If this is not possible, therapy should be based on
epidemiological information and knowledge of susceptibility of the target pathogens
at farm level, or at local/regional level. Use of the product should be in accordance
with official, national and regional antimicrobial policies. An antibiotic with a lower
risk of antimicrobial resistance selection (lower AMEG category) should be used for
first line treatment where susceptibility testing suggests the likely efficacy of this
approach.
Not for use for prophylaxis.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals:
This veterinary medicinal product may cause hypersensitivity reactions.
People with known hypersensitivity to the macrolide class should avoid contact with
the veterinary medicinal product.
AN: 01449/2023 & 01461/2023
Gamithromycin may cause irritation to eyes and/or skin. Avoid contact with skin or
eyes. If eye exposure occurs, flush eyes immediately with clean water. If skin
exposure occurs, wash the affected area immediately with clean water.
In case of accidental self-injection, seek medical advice immediately and show the
package leaflet or the label to the physician.
Wash hands after use.
Special precautions for the protection of the environment:
Not applicable.

See section 3.4.
AN: 01449/2023 & 01461/2023

Store below 30 °C.

Cattle:
Meat and offal: 64 days.
Not authorised for use in animals producing milk for human consumption.
Do not use in pregnant animals which are intended to produce milk for human
consumption within 2 months of expected parturition.
Sheep:
Meat and offal: 29 days.
Not authorised for use in animals producing milk for human consumption.
AN: 01449/2023 & 01461/2023
Do not use in pregnant animals which are intended to produce milk for human
consumption within 1 month of expected parturition.
Pigs:
Meat and offal: 16 days.

This information is sourced from the official Summary of Product Characteristics (SPC) published by the Veterinary Medicines Directorate (VMD). It is provided for informational purposes only and does not replace professional veterinary advice. Always consult your vet before administering any medication.