What Is Testosterone Cypionate

Testosterone Cypionate

Testosterone Cypionate is an intramuscular injectable hormone medication created by the manufacturing company, Pfizer. It is to be used by prescription only, as it is a very potent and controlled substance.

When viewing Testosterone Cypionate 250 mg, it looks like a white crystalline powder. It sometimes can be creamy. It should always be odorless and stable in air.

Testosterone Cypionate is an oil soluble 17 (beta) – cyclopentylpropionate long acting ester. This means that injections can be spaced out and the medication does not need to be given on a daily basis. It has a half life of about eight days when it is delivered intramuscularly. The hormone medication is also freely soluble in alcohol, chloroform and vegetable oil. It is insoluble in water. 

The chemical makeup of this hormone medication is:  

Chemical Makeup of Testosterone Cypionate
  • Chemical name:  androst-4-en-3-one, 17-(3-cyclopentyl-1-oxopropoxy)-, (17β)-
  • Molecular weight is:  412.61
  • Molecular formula is:  C27H40O3

What is Testosterone Cypionate? Used mostly for the purposes of testosterone replacement therapy (TRT), Testosterone Cypionate is bio-identical replica of the testosterone that the testes and ovaries (some is made in the adrenal glands) naturally produces. Since the body slows with age and these organs and glands stop producing a healthy amount of testosterone starting at approximately the age of 30 (age will vary amongst individuals), TRT can replace the vital hormone safely.

Testosterone Cypionate can only be legally used with a prescription from a licensed doctor after blood testing shows a testosterone deficiency is present. In addition to getting a treatment plan and an accurate prescription for injections, doctors need to also provide full medical supervision.

Testosterone Cypionate 200 mg vials are made up of these ingredients: (per mL)

One vial of Testosterone Cypionate 200 mg

Amount of the ingredient in the vial



Testosterone Cypionate

200 mg

Benzyl Benzoate 

0.2 mL

Cottonseed Oil 

560 mg

Benzyl Alcohol (Acts as a preservative)

9.45 mg

What Are The Benefits Of Testosterone Cypionate: A List

Here is a comprehensive list of the Testosterone Cypionate benefits when used correctly with a doctor’s prescription:

  • Muscle gain
  • Weight loss (especially with belly fat)
  • A much more attractive physique
  • Less cellulite
  • Growing hair
  • Less balding
  • Less wrinkled skin as its elasticity strengthens
  • Less noticeable crow’s feet
  • Skin looks smoother and less haggard
  • Elimination of erectile dysfunction
  • Longer lasting erections
  • Stronger orgasms
  • Less vaginal dryness
  • More sexual desire
  • A stronger sexual libido
  • Less hot flashes
  • Less night sweats
  • Better sleep with less sleep disturbances
  • Cells and tissues grow
  • Healing happens more quickly
  • The immune system strengthens
  • One is less likely to get sick (colds and the flu)
  • The body is better able to fight infection
  • Bone density strengthens
  • Less risk for developing osteoporosis
  • Bones are more resistant from breaking or fracturing
  • Less risk for developing osteporosis
  • Memory gets better
  • Less forgetfulness
  • Better ability to concentrate and focus
  • Less depression
  • Less anxiety
  • Less irritability
  • Less anger
  • Less feeling of agitation
  • Mood swings lessen
  • A better overall emotional stability
  • Sharper vision
  • Energy increases drastically
  • Less lethargy
  • Better self esteem
  • Better self worth
  • More stamina and endurance occurs
  • Better ability to recover after workouts
  • More vigor and vitality
  • Lower cholesterol levels
  • Lower triglyceride levels
  • Lower risk for heart attack
  • Less danger of having a stroke
  • Less danger for developing diabetes

What Are The Side Effects Of Testosterone Cypionate: A List

Here is a comprehensive list of the possible Testosterone Cypionate side effects which can occur for a number of reasons. Two of these reasons could be an allergic reaction to the medication or being on the incorrect dosage of the medication.

  • Swelling of:
  • Hands
  • Feet
  • Ankles
  • Tongue
  • Injection site
  • Mouth
  • Throat
  • Gums
  • Rash
  • Hives
  • Blemishes
  • Itching at injections site
  • Redness at injections site
  • Irregular heart beat (either much faster or much slower than normal)
  • Pain in chest
  • A feeling of pressure in the chest
  •  A feeling of tightness in the chest
  • A tingly feeling
  • Numbness to certain areas
  • Difficulty breathing
  • Shortness of breath
  • Dizziness
  • Nausea
  • Vomiting
  • Blood in urine or stool
  • Darker colored urine or stool
  • Constipation
  • Indigestion
  • Stomach cramps
  • Redness or irritation at injection site
  • Jaunice (a yellowing of the skin)
  • Bad breath or a fruity taste and smell in mouth
  • Dry mouth
  • Ulcers in mouth
  • Emotional issues such as
  • Irritability
  • Mood swings
  • Agitation
  • Anger outbursts
  • Anxiety
  • Paranoia
  • Slowed down feeling
  • Depression
  • Euphoria
  • Dysphoria
  • Irregular erections
  • Ejaculation issues
  • A noticeable decrease in the size of a man’s testicles
  • A deepened voice
  • Male patterned balding and thinning hair

Remember that Testosterone Cypionate results will vary from individual to individual. This variation in results of TRT is the reason that testing is so important and made to be a requirement before beginning TRT. All people have differing body chemistry and other factors that make their results become individualized.

Since people have such different genetic makeups, this is the reason that both side effects and benefits of TRT will vary. They will also vary in the time that it takes to see them occurring.

Doctors read physical exam results, blood test results and the results from a medical history in order to determine exactly what a patient needs. Doctors will determine which medication and dosage will work best for each patient. Our doctors treat all of our clients as unique individuals who have different needs and goals for testosterone replacement therapy. This is why individualized treatment plans are made and medical supervision is on-going. We want to make sure that each patient is getting exactly what they require to get the best Testosterone Cypionate results.