Trelstar La Mixject

Trelstar La Mixject Uses, Dosage, Side Effects, Food Interaction and all others data.

Trelstar La Mixject is a synthetic decapeptide agonist analog of luteinizing hormone releasing hormone (LHRH). Possessing greater potency than endogenous LHRH, triptorelin reversibly represses gonadotropin secretion. After chronic, continuous administration, this agent effects sustained decreases in LH and FSH production and testicular and ovarian steroidogenesis. Serum testosterone concentrations may fall to levels typically observed in surgically castrated men.

The first administration of triptorelin is followed by a transient surge of follicle stimulating hormone (FSH), luteinizing hormone (LH), estradiol,and testosterone. The time, peak and decline of testosterone in the body varies depending on the dose administered. This initial surge is often responsible for worsening of prostate cancer symptoms such as urethral or bladder outlet obstruction, bone pain, spinal cord injury and hematuria in the early stages. A sustained decrease in FSH and LH, and significant reduction of testicular steroidogenesis is usually seen 2-4 weeks post-initiation of therapy. This result is a reduction of serum testosterone to levels which are typically seen in surgically castrated men. Ultimately, tissues and functions that require these hormones become inactive. The effects of triptorelin can usually be reversed once the drug is discontinued.

Trade Name Trelstar La Mixject
Availability Prescription only
Generic Triptorelin
Triptorelin Other Names Triptorelin, Triptorelina, Triptoreline, Triptorelinum
Related Drugs Triptodur, Supprelin LA, estradiol, tamoxifen, Premarin, Lupron, Xtandi, leuprolide, Casodex, Zytiga
Weight 11.25mg/3months, 22.5mg/6months, 3.75mg/month, 22.5mg
Type Intramuscular powder for injection, intramuscular powder for injection, extended release
Formula C64H82N18O13
Weight Average: 1311.473
Monoisotopic: 1310.630874772
Protein binding

Triptorelin does not bind to plasma proteins at clinically relevant concentrations.

Groups Approved, Vet approved
Therapeutic Class
Manufacturer
Available Country United States
Last Updated: September 19, 2023 at 7:00 am
Trelstar La Mixject
Trelstar La Mixject

Uses

Trelstar La Mixject is a GnRH agonist indicated for the palliative treatment of advanced prostate cancer.

Trelstar La Mixject is indicated for the palliative treatment of advanced prostate cancer.

Trelstar La Mixject is also used to associated treatment for these conditions: Advanced Prostate Cancer, Controlled ovarian hyperstimulation therapy

How Trelstar La Mixject works

Trelstar La Mixject is a synthetic agonist analog of gonadotropin releasing hormone (GnRH). Animal studies comparing triptorelin to native GnRH found that triptorelin had 13 fold higher releasing activity for luteinizing hormone, and 21-fold higher releasing activity for follicle-stimulating hormone.

Toxicity

Some of the most commonly reported adverse effects of triptorelin are hot flushes reported in 58.6% of patients, skeletal pain in 12.1%, impotence in 7.1%, and headache in 5.0%. Other reported adverse effects include injection site pain, general body pain, leg pain, fatigue, hypertension, dizziness, diarrhea, vomiting, insomnia, emotional lability, anemia, pruritus, urinary tract infections, and urinary retention. Trelstar La Mixject is classified as Pregnancy Category X and contraindicated in pregnant women or in women who may become pregnant. Hormonal changes caused by triptorelin increase the risk for pregnancy loss. Studies done on pregnant rats demonstrated maternal toxicity and embryo-fetal toxicities.

Food Interaction

No interactions found.

Volume of Distribution

After a single IV dose of 0.5mg, the volume of distribution of triptorelin peptide in healthy males was 30 - 33L.

Elimination Route

Following IV administration of triptorelin, triptorelin is completely absorbed.

Half Life

The pharmacokinetics of triptorelin follows a 3 compartment model. The half lives are estimated to be 6 minutes, 45 minutes, and 3 hours respectively.

Clearance

In healthy male volunteers, total clearance of triptorelin was 211.9 mL/min.

Elimination Route

Elimination of triptorelin involves both the kidneys and the liver.

Innovators Monograph

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*** Taking medicines without doctor's advice can cause long-term problems.
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