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Megestrol acetate · Apicenna LLC

1 form: tablet. 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.

Form Species Dose Frequency Georgia
5 mg/tablet, Tablet · Cat Cat 1/2 tablet
For sexually mature female cats only. Do not use with genitourinary disease, neoplasia or diabetes. Hormonal estrus suppression requires veterinary selection and monitoring.
 · once weekly between estrus periods, for no more than 18 months		 once weekly between estrus periods, for no more than 18 months Georgia Yes, veterinary
In force until 27 Dec 2027
Veterinary (National Food Agency)
In the register: სტოპ-ინტიმი® ტაბლეტები კატებისთვის
№ 000237
Verified on: 21 Oct 2026
5 mg/tablet, Tablet · Cat Cat 1 tablet
For sexually mature female cats only. Do not use with genitourinary disease, neoplasia or diabetes. Hormonal estrus suppression requires veterinary selection and monitoring.
 · every 24 hours for 5-7 days, starting no later than day 3		 every 24 hours for 5-7 days, starting no later than day 3 Georgia Yes, veterinary
In force until 27 Dec 2027
Veterinary (National Food Agency)
In the register: სტოპ-ინტიმი® ტაბლეტები კატებისთვის
№ 000237
Verified on: 21 Oct 2026
Details: pack, label wording, sources, registration

Stop-Intim 5 mg/tablet, Tablet

megestrol acetate 5 mg tablets N15 for female cats
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.
Cat
4.8/10
Weak evidence support
vetman assessment

Stop-Intim

megestrol acetate 5 mg tablets N15 for female cats
Assessed clinical scopeCat · Full label: oestrus prevention between cycles and oestrus interruption in sexually mature queens with megestrol acetate 5 mg tablets · oral
Care settingVeterinary prescription for a healthy, sexually mature queen after excluding pregnancy, genitourinary disease, tumours and diabetes, with follow-up checks
vetman score 4.8/10 Weak evidence support
Evidence confidence: Low Georgia: Yes, veterinary · № 000237 · Verified on 21 Oct 2026

A weak option: a correctly sized megestrol tablet for queens whose long-term use risks diabetes, mammary tumours and pyometra. Use short supervised courses only and prefer surgical neutering for lasting control.

Regulatory and scientific credibility4.5/10

The exact product is registered in Georgia (000237, valid to 2027) with a current Russian manufacturer instruction, but it has no EU, UK or US authorisation documented in the reviewed evidence, and the catalogue source is only the maker's home page.

Clinical efficacy6.0/10

Megestrol acetate is an established way to prevent or interrupt oestrus in queens, but no study of this product exists and control lasts only while dosing continues.

Safety and tolerability3.0/10

Cats are especially sensitive to progestogens: diabetes mellitus, adrenal suppression, mammary hyperplasia and tumours, pyometra and weight gain are documented, and the risk grows with dose and duration up to the labelled 18 months.

Clinical practicality6.0/10

Half a tablet weekly, or one tablet daily for 5-7 days, is easy to give, and the 5 mg strength fits cats without awkward splitting.

Full-course cost-effectiveness-

No verified current Georgian price or patient-adjusted course cost was found; foreign prices were not substituted.

Important safety and use flags

  • Use only in sexually mature queens; do not use with genitourinary disease, tumours or diabetes, or in a cat that may be pregnant.
  • Check glucose and palpate the mammary glands before and during long courses; stop at the first sign of increased thirst, urination or mammary swelling.
  • Start interruption no later than day 3 of oestrus, and do not exceed 18 months of continuous prevention.
  • Watch for vaginal discharge, lethargy or loss of appetite after a course; pyometra can follow.
  • The catalogue reference is the maker's home page, not a product page; check the pack leaflet.
Assessment sources
  1. Apicenna Stop-Intim
  2. Georgia NFA register 20262026
  3. Feline estrus control2024
  4. Estrous-cycle manipulation2025
Assessed: 23 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
Megestrol acetate5 mg/tablet
Formulation Type
Tablet
Administration route
oral
Manufacturer
Apicenna LLC · Russia
Manufacturer (register)
LLC Apicenna, Russia
Manufacturer and country as in the veterinary medicines register (National Food Agency), row 773, 19 Oct 2026.
Source: NFA veterinary medicines register ↗
Registration
Georgia Yes, veterinary
In force until 27 Dec 2027
Veterinary (National Food Agency)
In the register: სტოპ-ინტიმი® ტაბლეტები კატებისთვის
№ 000237
Verified on: 21 Oct 2026
Controlled in Georgia
Unknown
DoseSpeciesWeightRouteFrequencySource
1/2 tablet
For sexually mature female cats only. Do not use with genitourinary disease, neoplasia or diabetes. Hormonal estrus suppression requires veterinary selection and monitoring.
 Cat Any weight oral once weekly between estrus periods, for no more than 18 months
Apicenna Stop-Intim
Manufacturer material
Information published by the maker or a seller, such as a datasheet or product page. A medicines regulator has not necessarily reviewed it.
Stop-Intim tablets for cats - current official instruction
Apicenna official product instruction
1 tablet
For sexually mature female cats only. Do not use with genitourinary disease, neoplasia or diabetes. Hormonal estrus suppression requires veterinary selection and monitoring.
 Cat Any weight oral every 24 hours for 5-7 days, starting no later than day 3
Apicenna Stop-Intim
Manufacturer material
Information published by the maker or a seller, such as a datasheet or product page. A medicines regulator has not necessarily reviewed it.
Stop-Intim tablets for cats - current official instruction
Apicenna official product instruction

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

Professional reference for veterinary professionals. Not advertising and not a substitute for the product label/SPC.

For veterinary professionals only. It does not replace clinical judgement or the product label; check the dose in the official label (SPC). vetman is not liable for harm caused by using this information.

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This reference is still growing. Missing a product? Let us know. · Report an error or request an addition · Updated: 21 Oct 2026

All of this shows in vetman as you prescribe

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

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