Estradiol + Trenbolone Acetate (Revalor-G, Revalor-IS): adverse event reports that FDA received

Signs that the reports list

A sign is a coded term from the report. The words in brackets are a plain gloss of the term. The percentage is the share of the 267 reports that list the sign. One report can list more than one sign.

The sign that is in the largest number of the reports comes first.

1. Death22.5%60 reports
2. Increased sexual interest14.2%38 reports
3. Underfilling, Package[a product quality report, not a sign in an animal]11.2%30 reports
4. Implant, Abnormal10.9%29 reports
5. Color, Abnormal[a product quality report, not a sign in an animal]10.1%27 reports
6. Anaphylaxis[sudden severe allergic-type reaction]7.5%20 reports
7. Respiratory tract disorder NOS[NOS: not otherwise specified]7.5%20 reports
8. Dispenser, Abnormal[a product quality report, not a sign in an animal]6.7%18 reports
9. Behavioural disorder NOS[behaviour change, type not specified]5.6%15 reports
10. Digestive tract disorder NOS[digestive problem, type not specified]5.2%14 reports
11. Lack of efficacy - NOS[the product did not have the expected effect]5.2%14 reports
12. Pneumonia[lung infection or inflammation]4.5%12 reports
13. Death by euthanasia[the animal was euthanized]3.4%9 reports
14. Dyspnoea[difficulty breathing]3.4%9 reports

The list shows 30 of 152 coded signs. A report is not proof that a drug caused a sign. Download all signs (CSV)

Reports by species

• Cattle61%163
• Human exposure1.5%4
• Dog0.4%1
• Other0.4%1

The share is of all 267 reports that name estradiol + trenbolone acetate. The other reports give a different species or no species.

Reports for each month, Jul 2021 to Jun 2026

The month is the month in which FDA received the report. Each chart has its own scale. FDA says that a report can take 3 to 6 months to reach the public data. The newest months can get more reports in a later update.

Reports by year

• Dog
• Cat
• Horse
• Other or not given

2025 has the reports that FDA received through Dec 2025. Download the years (CSV)

What the reports record

Each bar is on a scale of 0 to 100%.

Other pages with one of these ingredients

A report names a drug by its set of active ingredients. Each set has its own page. The list is in order of name.

• Estradiol, all combinations
• Trenbolone Acetate, all combinations
• Estradiol
• Estradiol + Norgestomet
• Estradiol + Progesterone
• Estradiol + Testosterone
• Estradiol + Trenbolone Acetate + Tylosin Tartrate
• Estradiol + Tylosin Tartrate
• Estradiol Benzoate + Trenbolone Acetate

Next in the A to Z list

• Eprinomectin + Praziquantel
• Epsiprantel
• Erythromycin
• Estradiol Benzoate + Progesterone
• Estriol

All drugs by active ingredient. Brand names A to Z

FDA pages for this drug

• How to Report Animal Drug and Device Side Effects and Product ProblemsThe FDA page that tells an owner or a veterinarian how to send a report.
• Green Book record of NADA 140-897The FDA record of the application for Revalor-G, Revalor-IS, Revalor-S.
• Green Book record of NADA 140-992The FDA record of the application for Revalor-200, Revalor-H, Revalor-IH.
• Green Book record of NADA 141-269The FDA record of the application for Revalor-XH, Revalor-XS.
• Green Book record of NADA 141-445The FDA record of the application for Revalor-XR.
• Green Book record of ANADA 200-367The FDA record of the application for Synovex T120, Synovex T40, Synovex T80.
• Animal Drugs @ FDAThe search page of the Green Book, the FDA list of approved animal drugs.

The site checked these addresses on 2 Oct 2026. The links open in a new tab.

Cite this page

Pet Drug Reports. Estradiol + Trenbolone Acetate: adverse event reports that FDA received. https://petdrugreports.com/drug/estradiol-trenbolone-acetate/ Source: FDA Center for Veterinary Medicine, openFDA Animal and Veterinary adverse event reports, export of 30 Oct 2026. Reports received through 26 Jun 2026.

Where the data come from

Questions about these reports

Which brand are these reports about?

The openFDA records give the value "MSK" for the brand name and for the manufacturer name of each drug. FDA says that MSK means "masked". So the site cannot count a report for a brand. The Green Book section of this page lists the brand names with these active ingredients.

Do the reports show that the drug caused the signs?

No. FDA states this about the data.

When looking at the results, be aware that there is no certainty that the reported drug or device caused the adverse event.

The adverse event may have been related to an underlying disease, other drugs used at the same time or other non-drug related sources.

FDA Center for Veterinary Medicine. Source: Adverse Event Reports for Animal Drugs and Devices

How many reports did FDA receive in the latest 12 months?

FDA received 16 reports in the 12 months to June 2026. It received 1 report in the 12 months before. FDA says that a report can take 3 to 6 months to reach the public data. The newest months can get more reports in a later update.

What kinds of report are in the count?

Of the 267 reports received from January 1995 to December 2025, 56.9% are about a safety issue only. 6.4% are about a lack of expected effectiveness, alone or with a safety issue. 36.7% are about a defect of the product or its package.