Written by:
Dr. Sophie Reynolds
Dr. Sophie Reynolds is a board-certified medical doctor specializing in internal medicine. With over a decade of experience in patient care and medical writing
Alpesib 150 mg Tablet
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Description
Alpesib 150 mg Tablet contains Alpelisib, a targeted anticancer medicine used to treat certain types of breast cancer. It helps slow tumor growth in patients with PIK3CA-mutated, HR-positive, HER2-negative disease under oncologist supervision.
Benefits
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Targets tumors with PIK3CA mutation
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Helps slow cancer growth and spread
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May improve progression-free survival
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Oral targeted therapy for convenient dosing
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Effective after endocrine therapy resistance
Indications and Usage
Alpesib 150 mg Tablet is indicated for:
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HR-positive, HER2-negative metastatic or advanced breast cancer
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Confirmed PIK3CA gene mutation
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Used in combination with fulvestrant
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For postmenopausal women and adult men after prior endocrine therapy
Diagnosis and treatment must be supervised by an oncologist.
How it Works
Alpelisib selectively inhibits the PI3K-alpha pathway, which is overactive in cancers with PIK3CA mutations. By blocking this signaling, it reduces cancer cell growth, survival, and resistance to hormonal therapy.
Dosage & Administration
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Typical dose: 150 mg once daily, or as prescribed
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Taken with food, at the same time each day
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Swallow tablets whole—do not crush, chew, or break
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Continue therapy unless disease progression or intolerance occurs
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Requires routine monitoring of blood sugar, liver function, and skin reactions
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Do not adjust or stop dose without oncologist approval
Side Effects
Common side effects:
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High blood sugar (hyperglycemia)
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Diarrhea
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Rash or itching
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Nausea
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Fatigue
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Loss of appetite
Serious side effects (seek urgent help):
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Severe allergic or skin reactions
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Lung inflammation (pneumonitis)
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Severe hyperglycemia or ketoacidosis
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Liver dysfunction
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Dehydration
Warning and Precaution
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Not recommended during pregnancy or breastfeeding
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Use caution in patients with diabetes — high risk of hyperglycemia
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Monitor liver, kidney, and lung function regularly
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Avoid alcohol and high-sugar foods if blood sugar increases
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Inform doctor about all ongoing medications
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Stop treatment and seek help if severe rash, breathing issues, or extreme fatigue occur
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