Package leaflet · information for the user

Trenbolone Acetate 100 mg/ml

Trenbolone Acetate

Read all of this leaflet carefully before you start using this medicine

  • Keep this leaflet. You may need to read it again.
  • If you have any further questions, ask your doctor or pharmacist.
  • This medicine has been prescribed for you only. Do not pass it on to others. It may harm them, even if their signs of illness are the same as yours.
  • If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet.

1.What Trenbolone Acetate is and what it is used for

Trenbolone Acetate 100 mg/ml is a solution for injection into a muscle. It contains trenbolone, a very strong man-made substance related to testosterone, the male sex hormone that men's bodies make naturally. It is used to build and preserve muscle and body tissue where your doctor has judged that a powerful, short-acting treatment is needed. This is the fast form: it starts working within about a day and leaves the body quickly, so treatment can be stopped or changed at short notice. It is a prescription-only medicine that your doctor has prescribed for you after weighing its strength against its risks; it needs close medical supervision and must never be used by anyone else.

2.What you need to know before you use Trenbolone Acetate

This is a particularly potent medicine, so the checks before and during treatment matter more than usual — read this section carefully and tell your doctor everything about your health.

Do not use it if

  • Do not use it if you are allergic to trenbolone acetate or to any of the other ingredients of this medicine (listed in the contents section).
  • Do not use it if you have, or your doctor suspects you have, cancer of the prostate gland or cancer of the male breast.
  • Do not use it if you are pregnant, might be pregnant, or are breastfeeding.
  • Do not use it if you have serious liver or kidney disease, or have ever had a liver tumour.
  • Do not use it if you have uncontrolled high blood pressure or serious heart disease, such as heart failure or a recent heart attack.
  • Do not use it if you have a serious mental health condition, or if a doctor has not prescribed it for you.

Warnings and precautions

  • Talk to your doctor before using it if you have any heart or blood-pressure problem. Trenbolone strains the heart and circulation more than milder medicines of this kind: it can raise blood pressure, badly upset your cholesterol balance and make you unusually breathless during everyday effort.
  • Talk to your doctor before using it if you have kidney problems or have noticed changes in your urine. Trenbolone can make urine look dark or rust-coloured, which is often harmless but must always be reported so your doctor can check your kidneys.
  • Talk to your doctor before using it if you have ever had depression, anxiety, or problems controlling your temper. This medicine can cause marked mood swings, aggression, restlessness and severe difficulty sleeping.
  • Talk to your doctor before using it if you have breathing pauses during sleep, asthma or a persistent cough; heavy night sweats and breathlessness are common with this medicine.
  • Talk to your doctor before using it if you have diabetes or a prostate problem, and expect blood tests before and during treatment, including blood counts, liver tests, kidney tests, cholesterol and prostate blood tests.
  • Some people get a sudden, frightening bout of coughing and chest tightness in the seconds after the injection. It usually passes within a minute or two, but tell your doctor if it happens to you, and never inject this medicine when you are alone if you have had this before.
  • This medicine contains a substance banned in sport. If you take part in tested sport, tell your doctor and your sporting body before treatment starts.

Other medicines and Trenbolone Acetate

Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines, including ones bought without a prescription and herbal products. Mention especially blood-thinning medicines used to prevent clots, such as warfarin, as this medicine can strengthen them and cause bleeding; medicines for diabetes, including insulin, since your blood sugar may fall and doses may need changing; steroid tablets or injections such as prednisolone, which together with this medicine make your body hold water; medicines for blood pressure, which may no longer control it well enough; and medicines handled by the liver, such as ciclosporin after a transplant.

Pregnancy, breastfeeding and fertility

Do not use this medicine if you are pregnant, think you may be pregnant, or are trying to conceive. It is a strong hormone that can seriously harm an unborn baby and can cause a female baby to develop male features. Do not use it while breastfeeding, as it may pass into breast milk. Women who could become pregnant must use reliable contraception throughout treatment. In men, trenbolone strongly suppresses the body's own testosterone and sharply reduces sperm production, so you may be unable to father a child during treatment; recovery after stopping is usually faster with this short-acting form than with long-acting ones, but it is not guaranteed. Discuss any plans for a family with your doctor before treatment.

Driving and using machines

This medicine can affect your ability to drive or use machines. It commonly causes poor sleep, night sweats that leave you tired the next day, irritability and sometimes sudden breathlessness or dizziness. Do not drive or use tools or machines if you feel tired, light-headed, or find your temper or concentration is not normal.

3.How to use Trenbolone Acetate

Always use this medicine exactly as your doctor has told you. Check with your doctor or pharmacist if you are unsure. It is given as an injection deep into a muscle, usually the buttock or thigh, by a doctor or nurse, and must never be injected into a vein — injecting into a vein can cause a sudden violent coughing fit and severe breathlessness. Because this form is short-acting, injections are given at short intervals; use a new sterile needle and syringe each time and a different site each time if you have been trained to inject it yourself. Check the liquid is clear before use. Each ampoule is for single use — discard any that is left. If you miss a dose, contact your doctor for advice; do not inject twice as much to make up for it, as this medicine is powerful and the risk of side effects rises steeply with larger amounts. If you think you have had too much, contact your doctor immediately.

4.Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.

Stop and get medical help straight away

  • A sudden violent coughing fit with chest tightness and difficulty breathing during or just after the injection — stay with someone, sit upright, and get medical help if it does not settle within a few minutes.
  • Chest pain, severe breathlessness at rest, or a very fast irregular heartbeat — call the emergency services, as this may be a heart problem.
  • Yellow skin or yellow whites of the eyes, dark urine, pale stools, or severe pain in the upper right of your tummy — stop and get medical help now, as these can be signs of liver damage.
  • Passing much less urine than normal, or urine the colour of cola along with muscle pain — get medical help the same day, as your kidneys may be affected.
  • Severe depression, agitation you cannot control, or thoughts of harming yourself or others — contact your doctor or emergency services immediately.
  • Swelling of the face, lips, tongue or throat, trouble breathing, or a sudden widespread rash — get emergency help, as this may be a serious allergic reaction.

Other possible side effects

  • heavy sweating, especially night sweats that soak the bedding
  • difficulty sleeping, and vivid or disturbed dreams
  • irritability, aggression, anxiety or sudden changes in mood
  • getting out of breath much sooner than usual during exercise or climbing stairs
  • a fast or pounding heartbeat, or raised blood pressure
  • urine that looks darker or rust-coloured than normal
  • acne, oily skin and hair loss or thinning of scalp hair
  • in men, reduced sex drive, difficulty getting an erection, smaller testicles and a much lower sperm count
  • in women, a deeper voice, extra facial and body hair, and periods that become irregular or stop (voice and hair changes may be permanent)
  • pain, redness or a hard lump where the injection was given

Reporting of side effects

If you get any side effects, talk to your doctor or pharmacist — including any not listed in this leaflet. You can also report them directly to us at pv@ergopharm.net or through our reporting form, and to your national reporting system. By reporting side effects you help provide more information on the safety of this medicine.

5.How to store Trenbolone Acetate

Keep this medicine out of the sight and reach of children. Store below 25 °C, keep the ampoules in the outer carton to protect them from light, and do not freeze. Do not use the medicine after the expiry date printed on the carton and on the ampoule; that date is the last day of the month shown. The liquid is normally clear and pale yellow to amber — do not use it if it is cloudy, if you can see particles, or if the glass is chipped or cracked. Never throw needles, syringes or medicines into the household rubbish or down the drain. Put used needles straight into a sharps container and return unused medicine and full sharps containers to your pharmacist for safe disposal, which protects other people and the environment.

6.Contents of the pack and other information

The active substance is trenbolone acetate. Each 1 ml ampoule contains 100 mg of trenbolone acetate. The only other ingredient is a sterile oil carrier, which dissolves the active substance and carries it into the muscle. The medicine is a clear, oily, pale-yellow to amber liquid supplied in 1 ml single-use glass ampoules, amber or clear glass. Each carton contains 10 ampoules of 1 ml together with this leaflet. The carton carries a printed square barcode (a GS1 DataMatrix), the batch number, the expiry date and a unique verification code under a scratch panel, which you or your pharmacist can check at ergopharm.net to confirm the pack is genuine. Manufactured under GMP conditions by Ergopharm, Vadodara, Gujarat, India. If you have any questions, ask your doctor or pharmacist.

This leaflet was last revised in July 2026.

Ergopharm Advanced Research Centre, Tandalja, Vadodara, Gujarat 390012, India. For Export Only. This medicine is available on prescription only. The leaflet supplied inside your pack, in the language of the country where it was supplied, is the version that applies to you.