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Palbokin 125mg Capsule 7pcs
Palbociclib inhibits Cyclin-dependent kinases (CDK) 4 and 6, which are key regulators of cellular proliferation. It works by:
- Blocking the transition from the G1 phase to the S phase in the cell cycle reduces the proliferation of estrogen receptor (ER)-positive breast cancer cells.
- Decreasing retinoblastoma (RB) protein phosphorylation, leads to reduced E2F signaling and enhanced cell growth arrest when combined with antiestrogens.
- Inducing sustained cell senescence when used alongside antiestrogens, greater effects were observed when antiestrogen treatment continued after Palbokin discontinuation.
- Demonstrating stronger tumor growth inhibition in combination with letrozole compared to either drug alone in patient-derived ER-positive breast cancer models.
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✅ Description:
Palbokin is a kinase inhibitor used to treat hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative advanced or metastatic breast cancer. It is prescribed in combination with:
- An aromatase inhibitor was the first endocrine-based therapy for postmenopausal women.
- Fulvestrant for women whose disease has progressed after prior endocrine therapy.
Relevant Products / প্রাসঙ্গিক পণ্য
✔️ Uses of Palbokin 125
- Treatment of Breast cancer
✔️ How does Palbokin 125 work?
Palbociclib selectively and reversibly inhibits cyclin-dependent kinases (CDK) 4 and 6. These kinases, along with cyclin D1, play a role in cell proliferation by regulating the cell cycle progression from the G1 to S phase. Inhibiting CDK4/6 slows the proliferation of breast cancer cells.
✔️ Common Side Effects: Palbokin 125
- Decreased white blood cell (WBC) and neutrophil counts
- Neutropenia, thrombocytopenia, and anemia
- Nausea, vomiting, diarrhea, and fatigue
- Hair loss, rash, and dry skin
- Mouth and lip inflammation
- Increased AST and ALT levels
✔️ Serious Side Effects: Palbokin 125
- Neutropenia: Occurs in up to 80% of patients, with febrile neutropenia reported in 1.8%. Regular blood monitoring is essential.
- Interstitial Lung Disease (ILD)/Pneumonitis: Severe or life-threatening cases have been observed. Patients should report symptoms like cough or shortness of breath immediately.
- Embryo-Fetal Toxicity: Can harm a developing fetus. Women of reproductive age should use effective contraception during treatment and for 3 weeks after stopping Palbokin.
✔️ Dosage & Administration of Palbokin 125
- Recommended Dose: 125 mg capsule, taken orally once daily for 21 consecutive days, followed by a 7-day break (28-day cycle).
- Administration Instructions:
- Take with food at the same time each day.
- For men undergoing Palbokin with an aromatase inhibitor, treatment with an LHRH agonist may be considered based on clinical guidelines.
- Dose Adjustments for Adverse Reactions:
- Starting Dose: 125 mg/day.
- First Reduction: 100 mg/day.
- Second Reduction: 75 mg/day.
- Discontinue treatment if further dose reduction is required.
Note: Not approved for use in children.
✔️ Renal Dose Adjustments: Palbokin 125
- Mild, moderate, or severe renal impairment (CrCl >15 mL/min): No dose adjustment required.
- Hemodialysis: Not studied.
✔️ Drug Interactions: Palbokin 125
Agents That Increase Palbokin Plasma Levels:
- Strong CYP3A inhibitors (e.g., Itraconazole, Ketoconazole, Ritonavir) can increase Palbokin levels by 87%.
- Avoid concomitant use or reduce Palbokin dosage.
- Avoid grapefruit or grapefruit juice.
Agents That Decrease Palbokin Plasma Levels:
- Strong CYP3A inducers (e.g., Rifampin, Carbamazepine, Phenytoin) can reduce Palbokin levels by 85%.
- Avoid concomitant use.
Drugs Affected by Palbokin:
- Palbokin increases the plasma concentration of CYP3A substrates (e.g., Midazolam, Fentanyl, Tacrolimus).
- Dose adjustments of these drugs may be necessary.
✔️ Pregnancy & Lactation
- Palbokin can harm a fetus if administered during pregnancy. Pregnant women should be advised of this risk.
- The drug’s excretion in breast milk is unknown. Use during breastfeeding should be avoided unless necessary.
✔️ Warnings & Precautions
- Neutropenia: Monitor blood counts before treatment, at the start of each cycle, and during the second cycle. Adjust the dose or delay treatment if severe neutropenia occurs.
- ILD/Pneumonitis: Interrupt treatment immediately if symptoms develop, and discontinue permanently for severe cases.
- Contraception: Women should use effective birth control during treatment and for 3 weeks post-treatment.
✔️ Storage:
Keep below 30°C temperature, away from light & moisture. Keep out of the reach of children.
⚠️Disclaimer:
At ePharma, we’re committed to providing accurate and accessible health information. However, all content is intended for informational purposes only and should not replace medical advice from a qualified physician. Please consult your healthcare provider for personalized guidance. We aim to support, not substitute, the doctor-patient relationship.
