Shaanxi BLOOM Tech Co., Ltd. is one of the most experienced manufacturers and suppliers of pt 141 injection in China. Welcome to wholesale bulk high quality pt 141 injection for sale here from our factory. Good service and reasonable price are available.
PT 141 Injection is a drug formulation used to treat sexual dysfunction, with its core component PT-141 (Bremelantide) acting by activating melanocortin receptors. It is a melanocortin receptor agonist that can non selectively activate receptor subtypes such as MC1R and MC4R.
By activating these receptors in the central nervous system, PT-141 promotes increased release of neurotransmitters such as dopamine, norepinephrine, and oxytocin, thereby enhancing sexual desire and arousal.
Mainly used to treat male and female sexual dysfunction. For women, it is approved for the treatment of pre menopausal women with decreased libido (HSDD), which can effectively increase female libido and genital arousal. For males, PT-141 is also used to treat erectile dysfunction (ED), especially in patients who do not respond to traditional medications such as sildenafil. Usually administered in the form of injections, such as subcutaneous injections. This method of administration ensures that the drug is quickly absorbed into the bloodstream, thereby exerting its effect quickly. Moreover, as a peptide drug, the storage conditions of PT-141 are crucial for the stability and effectiveness of the drug. Generally speaking, PT-141 should be stored in a low-temperature environment, such as -20 ℃ or even -70 ℃, to avoid drug degradation. The dissolved PT-141 should be stored separately at -70 ℃ and avoid repeated freeze-thaw cycles.
At the same time, our company not only provides pure powders, but also tablets and injections. If needed, please feel free to contact us at any time.
Customized Bottle Caps & Corks
|
|
|
|
|
|
PT 141 COA
PT 141 injection (Bremelantide) is a drug used to treat sexual dysfunction, and its pharmacological mechanism mainly involves activating melanocortin receptors to regulate neural pathways related to sexual desire. The following are its pharmacological mechanisms:
Melanocortin receptors (MCRs) are a class of G protein coupled receptors, including five subtypes: MC1R, MC2R, MC3R, MC4R, and MC5R. These receptors are widely distributed in the body and participate in the regulation of various physiological processes, such as pigmentation, energy metabolism, appetite control, immune response, and sexual behavior.
MC1R: mainly distributed in melanocytes, involved in skin pigmentation and inflammatory reactions.
MC2R: mainly distributed in the adrenal cortex, regulating the synthesis of glucocorticoids.
MC3R and MC4R: mainly distributed in the central nervous system, involved in energy metabolism, appetite control, and sexual behavior regulation.
MC5R: mainly distributed in exocrine glands such as sweat glands and sebaceous glands, participating in glandular secretion.
In the regulation of sexual behavior, MC3R and MC4R are particularly important, especially MC4R, which is considered to play a key role in sexual desire and arousal.
pharmacological mechanism
The pharmacological mechanism of PT 141 mainly activates melanocortin receptors in the central nervous system, especially MC4R, to regulate the release of neurotransmitters related to sexual desire, thereby enhancing sexual desire and arousal. PT 141 enters the central nervous system through the blood-brain barrier and binds to MC4R receptors in the hypothalamus and limbic system. After activating the MC4R receptor, a series of intracellular signaling pathways are triggered, including the cAMP PKA signaling pathway. After PT 141 activates MC4R, it promotes the release of dopamine. Dopamine is a neurotransmitter associated with reward and motivation, playing an important role in sexual desire and arousal. PT 141 may also promote the release of norepinephrine, enhance alertness and attention, and further promote sexual arousal.
There are studies suggesting that PT 141 may enhance sexual desire and satisfaction by regulating the release of oxytocin. PT 141 acts on the ventromedial nucleus (VMH) and medial preoptic area (MPOA) of the hypothalamus, which play a key role in regulating sexual behavior. By regulating the neural activity of these brain regions, PT 141 enhances sexual desire and arousal. Unlike PDE-5 inhibitors such as sildenafil (such as Viagra), PT 141 does not act on the vascular system and does not cause relaxation of smooth muscle and increased blood flow in the corpus cavernosum of the penis. Therefore, the therapeutic effect of PT 141 on erectile dysfunction is limited and mainly used to treat decreased libido.
Structure and Source of PT 141
PT 141 is a cyclic heptapeptide melanocortin receptor agonist developed from Melanotan II (MT-II). MT-II was initially studied as a potential sun free tanning agent, but in clinical trials, researchers found that MT-II can cause side effects such as increased sexual arousal. Further research has found that this effect is mainly mediated by PT 141.
The chemical structure of PT 141 is similar to alpha melanocyte stimulating hormone (α - MSH), but after modification, its selectivity for melanocortin receptors is higher, especially its affinity for MC4R is stronger. Unlike alpha MSH, PT 141 does not cause skin pigmentation and is therefore more suitable as a medication for treating sexual dysfunction.
pharmacokinetics
Understanding the pharmacokinetics of PT 141 helps to comprehend its pharmacological mechanisms and clinical applications.
Absorption: PT 141 is usually administered subcutaneously and quickly absorbed after injection. The bioavailability is high, and the blood drug concentration reaches its peak in a short period of time after injection.
Distribution: PT 141 can pass through the blood-brain barrier, enter the central nervous system, and bind to melanocortin receptors. The large distribution volume in the body indicates that it is widely distributed in tissues and organs.
Metabolism: PT 141 is mainly metabolized by peptidases in the body, producing inactive metabolites. Metabolites are excreted through the kidneys.
Excretion: The half-life of PT 141 is relatively short, about 2-3 hours. Metabolites are mainly excreted through urine.
Comparison with other drugs
Comparison with PDE-5 inhibitors:
Mechanism of action: PDE-5 inhibitors (such as sildenafil) improve erectile function by inhibiting phosphodiesterase-5, increasing cGMP levels in the corpus cavernosum of the penis, promoting smooth muscle relaxation and increased blood flow. PT 141 activates melanocortin receptors, regulates neurotransmitter release, and enhances sexual desire and arousal.
Indications: PDE-5 inhibitors are mainly used to treat erectile dysfunction, while PT 141 is mainly used to treat decreased libido.
Side effects: PDE-5 inhibitors may cause side effects such as headache, facial flushing, indigestion, and visual abnormalities, while PT 141 mainly causes side effects such as nausea, facial flushing, and headache.
Comparison with testosterone replacement therapy:
Mechanism of action: Testosterone replacement therapy improves libido and sexual function by supplementing exogenous testosterone, increasing testosterone levels in the body. PT 141 directly acts on the central nervous system, regulating neurotransmitters related to sexual desire.
Indications: Testosterone replacement therapy is mainly used to treat sexual dysfunction caused by low testosterone levels, while PT 141 is mainly used to treat HSDD.
Side effects: Testosterone replacement therapy may cause side effects such as acne, hirsutism, prostate hyperplasia, and increased red blood cells, while PT 141 has relatively fewer side effects.
PT 141 (Bremelantide) injection is a medication used to treat sexual dysfunction, mainly in the form of an injection. Specifically, PT 141 Injection is typically provided in the form of single dose vials or pre filled syringes, making it convenient for patients to self administer or for medical staff to operate
Single dose small bottle
The single dose vial of PT 141 usually contains a certain amount of PT 141 powder, which needs to be dissolved in sterile injection water or physiological saline before use. The dissolved PT 141 solution should be used immediately or stored according to the instructions and used within the specified time.
Pre filled syringe
In order to improve the convenience of medication for patients, PT 141 is often provided in the form of pre filled syringes. The pre filled syringe is already pre filled with dissolved PT 141 solution, and patients only need to follow the instructions for subcutaneous injection.
Usage of PT 141
The usage of PT 141 Injection mainly includes administration route, dosage, administration time, and administration frequency.
PT-141 injection is mainly administered through subcutaneous injection. Subcutaneous injection is usually chosen in the abdomen, thighs, or upper arms, and the injection site should be cleaned before injection to avoid infection.
The dosage of PT-141 Injection should be determined based on the patient's specific condition and the doctor's advice. Generally speaking, the recommended initial dose for female patients with Hyposexual Desire Disorder (HSDD) is 1.75 mg, administered subcutaneously. For male patients with erectile dysfunction (ED), dosage may need to be adjusted based on individual response.
PT-141 injection is usually administered subcutaneously about 45 minutes to 1 hour before sexual activity. This is because PT 141 requires a certain amount of time to reach the central nervous system through blood circulation and bind to melanocortin receptors, thereby exerting its pharmacological effects.
The administration frequency of PT-141 Injection should be determined based on the patient's needs and the doctor's advice. Generally speaking, it is not recommended for patients to use PT-141 Injection multiple times a day to avoid drug overdose and potential adverse reactions. For HSDD patients, it is usually recommended to use it when needed (such as before sexual activity) instead of daily fixed use.
Future Directions and Research Frontiers
● Alternative Delivery Methods
Nasal Spray: Early studies suggest nasal PT-141 may offer similar efficacy with fewer injection-related side effects.
Oral Formulation: Challenges remain due to poor bioavailability and first-pass metabolism.
● Expansion of Indications
Male HSDD: Phase III trials underway to evaluate safety and efficacy in men.
Postmenopausal Women: Investigating benefits in women experiencing libido decline due to hormonal changes.
● Combination Therapies
PT-141 + Testosterone: Exploring synergistic effects in hypogonadal men with low libido.
PT-141 + Psychotherapy: Integrating pharmacological and behavioral approaches for holistic treatment.
● Long-Term Safety Studies
Current data are limited to short-term use (up to 12 months). Longitudinal studies are needed to assess risks such as melanoma and cardiovascular events.
PT-141 injection marks a paradigm shift in the treatment of sexual dysfunction by targeting the brain rather than the body. While its FDA approval for HSDD in women is a milestone, ongoing research is needed to clarify its role in men, refine dosing protocols, and address long-term safety concerns.
For patients struggling with low libido, PT-141 offers a promising alternative to traditional therapies, provided it is used judiciously under medical supervision. As scientists continue to unravel the complexities of human sexuality, peptides like PT-141 may pave the way for more personalized and effective interventions in the years to come.
By balancing innovation with caution, we can ensure that PT-141 remains a tool for enhancing intimacy rather than a source of controversy in the evolving landscape of sexual medicine.
Hot Tags: pt 141 injection, suppliers, manufacturers, factory, wholesale, buy, price, bulk, for sale