First-Testosterone MC Dosage

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• Dosage of First-Testosterone MC in details
• First-Testosterone MC interactions
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Dosage of First-Testosterone MC in details

First-Testosterone MC (First-Testosterone MC (transdermal)) TTS

One system is applied at about the same time each day. The adhesive side of the First-Testosterone MC (First-Testosterone MC (transdermal)) TTS system should be placed on a clean, dry area of skin on the arm, back or upper buttocks immediately upon removal from the protective pouch. DO NOT APPLY TO THE SCROTUM. The area selected should not be oily, damaged, or irritated. The system should be pressed firmly in place with the palm of the hand for about 10 seconds, making sure there is good contact, especially around the edges. In the event that a system should fall off, the same system may be reapplied. If the system comes off after it has been worn for more than 12 hours and it cannot be reapplied, a new system may be applied at the next routine application time. In either case, the daily treatment schedule should be continued. The First-Testosterone MC (First-Testosterone MC (transdermal)) TTS system should be worn approximately 24 hours and then replaced. To ensure proper dosing, serum First-Testosterone MC concentration may be measured 2-4 hours after an application of First-Testosterone MC (First-Testosterone MC (transdermal)) TTS. If the serum First-Testosterone MC concentrations are low, the dosing regimen may be increased to 2 systems. Because of variability in analytical values among diagnostic laboratories, all First-Testosterone MC measurements should be performed at the same laboratory.

First-Testosterone MC (First-Testosterone MC (transdermal)) and First-Testosterone MC (First-Testosterone MC (transdermal)) WITH ADHESIVE

Patients should start therapy with a 6 mg/d system of either First-Testosterone MC (First-Testosterone MC (transdermal)) or First-Testosterone MC (First-Testosterone MC (transdermal)) WITH ADHESIVE applied daily; if the scrotal area cannot accommodate a 6 mg/d system, a 4 mg/d First-Testosterone MC (First-Testosterone MC (transdermal)) system should be used. One First-Testosterone MC (First-Testosterone MC (transdermal)) or First-Testosterone MC (First-Testosterone MC (transdermal)) WITH ADHESIVE system should be placed on clean, dry, scrotal skin. Scrotal hair should be dry-shaved for optimal skin contact. Chemical depilatories should not be used. First-Testosterone MC (First-Testosterone MC (transdermal)) or First-Testosterone MC (First-Testosterone MC (transdermal)) WITH ADHESIVE should be worn 22-24 hours.

After 3-4 weeks of daily system use, blood should be drawn 2-4 hours after system application for determination of serum total First-Testosterone MC. Because of variability in analytical values among diagnostic laboratories, this laboratory work and later analyses for assessing the effect of the First-Testosterone MC (First-Testosterone MC (transdermal)) and First-Testosterone MC (First-Testosterone MC (transdermal)) WITH ADHESIVE therapy should be performed at the same laboratory.

If patients have not achieved desired results by the end of 6-8 weeks of treatment with any of the First-Testosterone MC (First-Testosterone MC (transdermal)) products, another form of First-Testosterone MC replacement therapy should be considered.

How supplied

First-Testosterone MC (First-Testosterone MC (transdermal)) TTS, First-Testosterone MC (First-Testosterone MC (transdermal)), and First-Testosterone MC (First-Testosterone MC (transdermal)) WITH ADHESIVE First-Testosterone MC transdermal systems contain a Schedule III controlled substance as defined by the Anabolic Steroids Control Act.

First-Testosterone MC (First-Testosterone MC (transdermal)) TTS

First-Testosterone MC (First-Testosterone MC (transdermal)) TTS systems are supplied as individually pouched systems, 30 per carton. First-Testosterone MC (First-Testosterone MC (transdermal)) TTS 5 mg/d (First-Testosterone MC Transdermal System) -- each 60 cm2 system contains 328 mg First-Testosterone MC USP for nominal dose of 5 mg/day

Carton of 30 First-Testosterone MC (First-Testosterone MC (transdermal)) TTS 5 mg/d systemsNDC 17314-4717-3

First-Testosterone MC (First-Testosterone MC (transdermal)) and First-Testosterone MC (First-Testosterone MC (transdermal)) WITH ADHESIVE

First-Testosterone MC (First-Testosterone MC (transdermal)) and First-Testosterone MC (First-Testosterone MC (transdermal)) WITH ADHESIVE systems are supplied as individually pouched systems, 30 per carton.

First-Testosterone MC (First-Testosterone MC (transdermal)) 4 mg/d (First-Testosterone MC Transdermal System) -- each 40 cm2 system contains 10 mg First-Testosterone MC USP for nominal delivery of 4 mg for one day.

Carton of 30 First-Testosterone MC (First-Testosterone MC (transdermal)) 4 mg/d systems. NDC 17314-4608-3

First-Testosterone MC (First-Testosterone MC (transdermal)) and First-Testosterone MC (First-Testosterone MC (transdermal)) WITH ADHESIVE

6 mg/d (First-Testosterone MC Transdermal System) -- each 60 cm2 system contains 15 mg First-Testosterone MC USP for nominal delivery of 6 mg for one day.

Carton of 30 First-Testosterone MC (First-Testosterone MC (transdermal)) 6 mg/d systems. NDC 17314-4609-3

Carton of 30 First-Testosterone MC (First-Testosterone MC (transdermal)) WITH ADHESIVE 6 mg/d systemsNDC 17314-2836-3

Storage

First-Testosterone MC (First-Testosterone MC (transdermal)) TTS

Store at controlled room temperature below 25oC (77oF).

First-Testosterone MC (First-Testosterone MC (transdermal)) and First-Testosterone MC (First-Testosterone MC (transdermal)) WITH ADHESIVE

Store at room temperature 15-30oC (59-86oF).

Disposal

First-Testosterone MC (First-Testosterone MC (transdermal)) products should be discarded in household trash in a manner that prevents accidental application or ingestion by children or pets.

Caution: Federal law prohibits dispensing without prescription.

REFERENCE

1. Matsumoto AM, Sandblom RE, Schoene RB et al. First-Testosterone MC replacement in hypogonadal men: Effects on obstructive sleep apnoea, respiratory drives, and sleep. Clin Endocrinol (1985) 22: 713-721.

2. Schneider BK, Pickett CK, Zwillich CW et al. Influence of First-Testosterone MC on breathing during sleep. J Appl Physiol (1986) 61: 618-623.

3. Matsumoto AM. Hormonal therapy of male hypogonadism. Endocrinol Metab Clin North Am. (1994) 23: 857-875.

4. Bardin CW, Swerdloff RS, Santen RJ. Androgens: Risks and benefits. J Clin Endocinol Metab (1991) 73: 4-7.

5. Nieschlag E, Wang CCL. Guidelines for the use of androgens in men. Geneva: World Health Organization (1992); 1-16.

6. Walle T, Walle UK, Mathur RS et al. Propranolol metabolism in normal subjects: Association with sex steroid hormones. Curr Pharmacol Ther (1994) 56:127-132.

7. Physicians Generic Rx: The Complete Drug Reference. (1996); II-1972

What other drugs will affect First-Testosterone MC?

Tell your doctor about all your other medicines, especially:

• insulin or oral diabetes medicine;

• medicine to treat pain, cough, or cold symptoms;

• a blood thinner--warfarin, Coumadin, Jantoven; or

• steroid medicine--prednisone, dexamethasone, and others.

This list is not complete. Other drugs may affect First-Testosterone MC, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.

See also:

First-Testosterone MC drug interactions (in more detail)

First-Testosterone MC interactions

Drug Interactions

Anticoagulants: C-17 substituted derivatives of First-Testosterone MC, such as methandrostenolone, have been reported to decrease the anticoagulant requirements of patients receiving oral anticoagulants. Patients receiving oral anticoagulant therapy require close monitoring, especially when androgens are started or stopped.

Oxyphenbutazone: Concurrent administration of oxyphenbutazone and androgens may result in elevated serum levels of oxyphenbutazone.

Insulin: In diabetic patients, the metabolic effects of androgens may decrease blood glucose and therefore, insulin requirements.

Propranolol: In a published pharmacokinetic study of an injectable First-Testosterone MC product, administration of First-Testosterone MC cypionate led to an increased clearance of propranolol in the majority of men tested.6

Corticosteroids: The concurrent administration of First-Testosterone MC with ACTH or corticosteroids may enhance edema formation; thus these drugs should be administered cautiously, particularly in patients with cardiac or hepatic disease.7

Drug/Laboratory Test Interactions

Androgens may decrease levels of thyroxin-binding globulin, resulting in decreased total T. Free thyroid hormone levels remain unchanged, however, and there is no clinical evidence of thyroid dysfunction.

The First-Testosterone MC (First-Testosterone MC (transdermal)) products contain a Schedule III controlled substance as defined by the Anabolic Steroids Control Act.

First-Testosterone MC (First-Testosterone MC (transdermal)) TTS is designed for application to arm, back or upper buttocks skin.

First-Testosterone MC (First-Testosterone MC (transdermal)) and First-Testosterone MC (First-Testosterone MC (transdermal)) WITH ADHESIVE are designed for application to scrotal skin only. Because scrotal skin is at least five times more permeable to First-Testosterone MC than other skin sites, First-Testosterone MC (First-Testosterone MC (transdermal)) or First-Testosterone MC (First-Testosterone MC (transdermal)) WITH ADHESIVE will not produce adequate serum First-Testosterone MC concentrations if applied to non-scrotal skin.

Ingestion of First-Testosterone MC, or the contents of any of the First-Testosterone MC (First-Testosterone MC (transdermal)) products will not result in clinically significant serum First-Testosterone MC concentrations due to extensive first-pass metabolism. In addition, an intramuscular injection of First-Testosterone MC from any of the First-Testosterone MC (First-Testosterone MC (transdermal)) products will not produce adequate serum First-Testosterone MC levels due to its short half-life (about 10 minutes).

References

1. DailyMed. "TESTOSTERONE: DailyMed provides trustworthy information about marketed drugs in the United States. DailyMed is the official provider of FDA label information (package inserts).". https://dailymed.nlm.nih.gov/dailyme... (accessed September 17, 2018).
2. FDA/SPL Indexing Data. "3XMK78S47O: The UNique Ingredient Identifier (UNII) is an alphanumeric substance identifier from the joint FDA/USP Substance Registration System (SRS).". https://www.fda.gov/ForIndustry/Data... (accessed September 17, 2018).
3. MeSH. "Androgens". https://www.ncbi.nlm.nih.gov/mesh/68... (accessed September 17, 2018).

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Information checked by Dr. Sachin Kumar, MD Pharmacology