FIRST-Testosterone should be used exactly as your doctor tells you. It is for external use only—do not swallow or inject it.
How to Apply:
- Wash and dry the skin where you will apply the medicine.
- Use the exact amount prescribed.
- Apply to clean, dry skin on the shoulders, upper arms, or thighs (as instructed).
- Do not apply to the genitals or broken skin.
- Wash your hands after applying.
- Let the area dry completely before putting on clothes.
- Do not shower, bathe, or swim for several hours after applying.
Avoid skin contact with others, especially women and children, until the area is washed or covered with clothing.
Testosterone is a hormone made in the testicles in men. It is important for:
- Developing male features (deep voice, facial hair)
- Building muscle and bone strength
- Maintaining sex drive and erections
- Supporting mood and energy levels
Some men have low testosterone due to age, injury, or health problems. FIRST-Testosterone gives the body extra testosterone to replace what it is missing.
The hormone is absorbed through the skin into the bloodstream, helping the body function normally again.
FIRST-Testosterone may cause some side effects, but not everyone gets them. Most are mild and manageable, especially if used correctly.
Common Side Effects:
- Skin irritation or redness where applied
- Oily skin or acne
- Mood swings or aggression
- Increased body hair
- Swelling in hands or feet
- Headache
Serious Side Effects:
- Blood clots (pain, swelling, trouble breathing)
- Heart problems (chest pain, shortness of breath)
- Liver issues (yellowing skin, dark urine)
- Enlarged prostate or prostate cancer risk
- Sleep apnea (worsening of breathing during sleep)
Call your doctor right away if you notice chest pain, leg pain, or vision changes.
Before using FIRST-Testosterone, tell your doctor if you have:
- Prostate cancer or high PSA levels
- Breast cancer (in men)
- Heart disease, stroke, or high blood pressure
- Liver or kidney problems
- Sleep apnea
- High cholesterol or diabetes
Important Precautions:
- Do not use if you have prostate or breast cancer.
- Keep the medicine away from children and women. Contact with testosterone can cause early puberty or other problems.
- Wash hands after applying to prevent accidental transfer.
- Avoid applying on the genital area.
- Do not use more than prescribed—too much testosterone can be harmful.
Your doctor will check your blood testosterone levels, PSA, and liver function regularly.
Testosterone can interact with other medicines. Tell your doctor if you use:
- Blood thinners (like warfarin)
- Insulin or diabetes medicines
- Steroids or hormone treatments
- Heart or blood pressure medications
These interactions can cause serious side effects, so your doctor may need to monitor your treatment closely.
The doctor will decide the best dose for you based on:
- Blood testosterone levels
- Age and overall health
- Response to treatment
Common Guidelines:
- Start with a low dose (e.g. 5 mg daily)
- The dose may be adjusted every few weeks
- Apply at the same time every day
- Follow all instructions carefully
If you miss a dose, apply it as soon as you remember. If it’s almost time for your next dose, skip the missed one—do not use double the amount.
Do not stop using the medicine suddenly without your doctor’s advice.
FIRST-Testosterone is a controlled substance, which means:
- It is only available with a doctor’s prescription
- You must have low testosterone confirmed by a blood test
- Regular check-ups and lab tests are needed
- It is not available over the counter
Doctors will monitor your treatment to make sure it is safe and effective. Misusing testosterone can be dangerous, especially in bodybuilding or sports.
Never share your testosterone with others. Store the medicine safely and out of reach of children.