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POM-V Prescription Required Companion Animal

Therios 75 mg Chewable Tablets for Cats

Active ingredient: Cefalexin

Form

Tablet

Species

Cats

Manufacturer

Ceva Sante Animale

VMD MA No.

14966/5070

What it's used for

Infections caused by bacteria susceptible to cefalexin . Lower urinary tract infections due to .Treatment of cutaneous and subcutaneous infections: pyoderm...

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 Cefalexin

  1. 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. 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.

Prescription required

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

Clinical information

Therios 75 mg Chewable Tablets for Cats — SPC Details

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

Infections caused by bacteria susceptible to cefalexin
. Lower urinary tract infections due to
.Treatment of cutaneous and subcutaneous infections: pyoderma due
Staphylococcus.spp
Do not use in case of severe kidney failure
Do not use in cases of hypersensitivity to penicillins cephalosporins or to any of the
excipients.
Do not use in rabbits, guinea pigs, hamsters , gerbils and other small rodents.
Cat
Undetermined frequency (cannot
be estimated from the available
data):
Vomiting
, Diarrhoea
1
In case of recurring vomiting and/or diarrhoea, the treatment should be discontinued,
and the advice of the attending veterinarian sought.
Allergic reactions are possible with cefalexin and allergic cross-reactivity with other beta
lactams may occur.
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 also the package leaflet for respective contact details.

Revised: November 2025
AN: 01841/2025
None

Special precautions for use in animals
As with other antibiotics which are excreted mainly by the kidneys, systemic
accumulation may occur when renal function is impaired. In cases of known renal
insufficiency, the dose should be reduced and/or the interval of administration
increased and nephrotoxic drugs should not be administered concurrently.

Revised: November 2025
AN: 01841/2025
Wherever possible, the use of the veterinary medicinal product should be based on
susceptibility testing.
Official and local antimicrobial policies on antibiotherapy should be taken into account
when the veterinary medicinal product is used.
Use of the veterinary medicinal product deviating from the instructions given in the SPC
may increase the prevalence of bacteria resistant to the cefalexin and may decrease the
effectiveness of treatment with penicillins due to the potential for cross resistance.
This veterinary medicinal product should not be used to treat kittens less than 9 weeks
of age.
Use of the veterinary medicinal product in cats weighing less than 2.5 kg should be in
accordance with the benefit/risk assessment performed by the responsible
veterinarian.
The chewable tablets are flavoured. In order to avoid any accidental ingestion, store
tablets out of reach of the animals.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals
Penicillins and cephalosporins may cause hypersensitivity (allergy) following injection,
inhalation, ingestion or skin contact. Hypersensitivity to penicillins may lead to cross-
reactions to cephalosporins and vice versa. Allergic reactions to these substances
may occasionally be serious.
•
have been advised not to be in contact with such substances.
•
all recommended precautions. Wash hands after use.
•
should seek medical advice and show the doctor this warning. Swelling
of the face, lips or eyes or difficulty in breathing are more serious
symptoms and require urgent medical attention.
•
the package leaflet or the label to the doctor.
Special precautions for the protection of the environment
Not applicable
The bactericidal activity of cephalosporins is reduced by concomitant administration of
bacteriostatic acting compounds (macrolides, sulfonamides and tetracyclines).
Nephrotoxicity can be increased when 1
st
generation cephalosporins are combined
with polypeptide antibiotics, aminoglycosides or some diuretics (furosemide).
Concomitant use with such active substances should be avoided.
Do not store above 25°C Store in
the original package.
Return any halved tablet to the opened blister pack.
Not applicable.
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.

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