Trimsulfasol 20/100 mg/ml Solution

Trimsulfasol 20/100 mg/ml Solution

This product can no longer be purchased from Farmacy.

Type: POM-V

PLEASE NOTE: A prescription issued by a UK registered vet (MRCVS) is required before this item can be dispatched.

Product Description

Indicated for use in pigs (fattening pigs) and chickens (broilers).

Fattening pigs: Treatment and metaphylaxis of

  • Post weaning diarrhoea caused by ß-haemolytic K-88positive, K99- positive or 987P Escherichia coli strains
  • Secondary bacterial infections caused by Pasteurella multocida, Actinobacillus pleuropneumoniae, Streptococcus spp. and Haemophilus parasuis.

Broilers: Treatment and metaphylaxis of:

  • Colibacillosis caused by Escherichia coli susceptible to trimethoprim-sulfamethoxazole
  • Coryza caused by Avibacterium paragallinarum susceptible to trimethoprimsulfamethoxazole.

The presence of the disease in the group/flock must be established before the product is used.

Dosage & Administration

In drinking water use.

The product can be added directly to the drinking water to prepare a therapeutic solution at the calculated concentration, but can also be used in a concentrated stock solution by adding 200 ml of the veterinary medicinal product per litre of water and diluting this further.

Fattening pigs:

  • 5 mg trimethoprim and 25 mg sulfamethoxazole per kg body weight per day, for 4-7 consecutive days.
  • This corresponds to 1 ml of the veterinary medicinal product per 4.0 kg body weight per day.


  • 7.5 mg trimethoprim and 37.5 mg sulfamethoxazole per kg body weight per day, for 3 consecutive days.
  • This corresponds to 1 ml of the veterinary medicinal product per 2.67 kg body weight per day. 

Body weight and water consumption should be determined as accurately as possible to ensure administration of the correct dose. The daily amount is to be added to the drinking water such that all medication will be consumed in 24 hours. Medicated drinking water and stock solutions should be freshly prepared every 24 hours.

During the treatment period animals should not have access to water sources other than the medicated water. However, it should be ensured that animals always have sufficient water available.

After the end of the medication period, the water supply system should be cleaned appropriately to avoid intake of sub-therapeutic amounts of active substance.

The uptake of medicated water depends on the clinical condition of the animals. In order to obtain the correct dosage the concentration of the veterinary medicinal products has to be adjusted accordingly.


Pigs:meat and offal: 8 days.

Chickens:meat and offal: 5 days.

Not for use in birds producing or intended to produce eggs for human consumption.

Data Sheet

To read full data sheet, please click the link below

Trimsulfasol 20/100 mg/ml Solution

Delivery & Returns




Non-refrigerated items

By 6pm


Refrigerated items

By 12am

£100 +



Delivery to United Kingdom only

Please note there is a small excess of £7.50 for dispatch to Highlands and Islands and Isle of Wight and £12 to Guernsey and Jersey as governed by your postcode.

  1. We are unable to ship to Northern Ireland. Any orders placed online will be cancelled and refunded.
  2. Orders are typically dispatched the day after they are received. For example, orders placed on Monday, will be dispatched on Tuesday. Orders received on Friday will not be dispatched until Monday subject to stock availability.
  3. Orders placed on a Thursday or Friday that have refrigerated items included will be dispatched on Sunday for delivery before 12pm on the following Monday to ensure that the items are delivered to you under controlled conditions. 
  4. We do not offer a Saturday or Sunday delivery service.
  5. Standard and Priority costs apply to the UK mainland only. Highlands and Islands and Isle of Wight may incur an excess to cover additional carriage costs as governed by your postcode. Full details can be found by clicking the link below.
  6. Standard Delivery (non-refrigerated products) guarantees delivery by 6pm
  7. Priority Delivery (refrigerated products) guarantees delivery by 12pm.
  8. We are unable to dispatch refridgerated products to Highlands and Islands addresses. Full details can be found by clicking the link below. 

For full delivery details click here 

Faulty Goods Returns

In the unlikely event that you receive faulty or damaged goods please call 01306 628215 within 72 hours of receipt of your goods. Please have your order reference to hand. You will be asked to provide evidence of the damaged goods if damaged in transit.

Restricted Goods Returns

We are unable to offer refunds on the following products.

  • Animal medicines - general & vaccines
  • Refrigerated/temperature sensitive products

Please contact the Farmacy Team before sending any returns on 01306 628215.

For full returns details click here

Product Species

  • Pigs
  • Chickens