POM-V Prescription Required

Pharmasin 20000 IU/g Oral Granules for Pigs

Active ingredient: Tylosin

Form

Powder

Species

Pigs

Manufacturer

Huvepharma N.V.

VMD MA No.

30282/5010

What it's used for

Pigs: Treatment and metaphylaxis of clinical signs of porcine proliferative enteritis (porcine intestinal adenomatosis, proliferative hemorrhagic enteropat...

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 Tylosin

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

Pharmasin 20000 IU/g Oral Granules for Pigs — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 26 Mar 2026.

Pigs: Treatment and metaphylaxis of clinical signs of porcine proliferative
enteritis (porcine intestinal adenomatosis, proliferative hemorrhagic
enteropathy, ileitis) associated with Lawsonia intracellularis when the disease
has been diagnosed at the group level.

Do not use in cases of hypersensitivity to the active substance, to other
macrolides or to any of the excipients.
Do not use where cross-resistance to other macrolides (MLS-resistance) is
suspected.
Do not use in animals vaccinated with tylosin-sensitive vaccines either at the
same time or within 1 week previously.
Do not use in animals with hepatic disorders.
Do not use in horses. Danger of inflammation of the cecum.

Revised: February 2024
AN: 00377/2023

Pigs:
Undetermined
frequency (cannot be
estimated from available
data)
- Diarrhoea, rectal prolapse
- Rectal oedema
- Pruritus, erythema
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 its local
representative or the national competent authority via the national reporting
system. See package leaflet for respective contact details.

None.

Special precautions for use in animals
This product is only for administration in small quantities of feed for immediate
consumption, to individual animals. Animals with acute infections may have a
reduced feed intake and should be treated with a suitable injectable veterinary
medicinal product first.
Due to likely variability (time, geographical) in susceptibility of bacteria for
tylosin, bacteriological sampling and susceptibility testing are recommended.
Inappropriate use of the veterinary medicinal product may increase the
prevalence of bacteria resistant to Tylosin and other macrolides.
Special precautions to be take by the person administering the veterinary
medicinal product to animals
Tylosin may induce irritation. Macrolides, such a tylosin, may also cause
hypersensitivity (allergy) following injection, inhalation, ingestion or contact with
skin or eye. Hypersensitivity to tylosin may lead to cross reactions to other
macrolides and vice versa. Allergic reactions to these substances may
occasionally be serious and therefore direct contact should be avoided.
To avoid exposure during mixing and handling of the veterinary medicinal
product wear safety glasses, impervious gloves, and wear either a disposable
half mask respirator conforming to European Standard EN149 or a non-
disposable respirator to European Standard EN140 with a filter to EN143. Wash
hands after use.
In the event of accidental skin contact, wash thoroughly with soap and water. In
case of accidental eye contact, flush the eyes with plenty of clean, running
water.
Do not handle the veterinary medicinal product if you are allergic to ingredients
in the veterinary medicinal product.
If you develop symptoms following exposure, such as skin rash, you should
seek medical advice and show the physician this warning. Swelling of the face,
lips and eyes or difficulty in breathing are more serious symptoms and require
urgent medical attention.
Special precautions for the protection of the environment
Not applicable.
Other precautions:
Not applicable

Revised: February 2024
AN: 00377/2023

Lincosamides and aminoglycoside antibiotics antagonize the activity of tylosin.

Store in a dry place below 30°C. Do not refrigerate or freeze. Protect from frost.
Store in the original container in order to protect from light.

Pigs
Meat and offal: 1 day.
5.

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.