Alpelisib 150 mg Tablet – Uses, Dosage, Side Effects, Price
What is Alpelisib 150 mg Tablet?
Alpelisib 150 mg Tablet is an oral targeted cancer medicine used for a specific type of breast cancer. It is designed for patients whose cancer shows a PIK3CA gene mutation, which drives abnormal cell growth.
Unlike traditional chemotherapy, this medicine works by blocking a specific signaling pathway inside cancer cells rather than attacking all rapidly dividing cells.
It is always prescribed by an oncologist and used only in carefully selected patients.
Who is Alpelisib used for?
This medicine is typically prescribed for:
- Adults with HR-positive, HER2-negative advanced or metastatic breast cancer
- Patients with confirmed PIK3CA mutation
- Cases where hormonal therapy alone is no longer effective
- Patients receiving combination endocrine therapy
It is not used for general or early-stage self-treatment.
Why is PIK3CA mutation important?
Some breast cancers carry a genetic change called a PIK3CA mutation. This mutation activates a growth pathway inside cancer cells, making them multiply faster and resist treatment. Alpelisib is specifically designed to block this pathway, making it effective only in mutation-positive cases. This is why genetic testing is required before starting treatment.
How does Alpelisib work in the body?
Alpelisib blocks a signaling system called the PI3K pathway, which is involved in:
- Cell growth
- Survival of cancer cells
- Resistance to hormone therapy
By inhibiting this pathway, Alpelisib helps slow tumor progression and improves response to endocrine therapy.
When do doctors prescribe Alpelisib?
Doctors usually consider Alpelisib when:
- Cancer has progressed after hormone therapy
- PIK3CA mutation is confirmed
- Combination therapy is needed for better control
- The patient is suitable for oral targeted treatment
It is part of a precision oncology treatment plan, not a first-line universal drug.
How is Alpelisib taken?
- Taken once daily
- Must be taken with food
- Dose is decided by an oncologist
- Should be taken at the same time every day
- Do not change or stop without medical advice
Missing doses or incorrect use may reduce treatment effectiveness.
What side effects should patients know about?
Common effects:
- High blood sugar
- Skin rash
- Diarrhea
- Fatigue
- Nausea
- Loss of appetite
Serious effects:
- Severe skin reactions
- Significant blood sugar elevation
- Liver abnormalities
- Breathing difficulty
Regular monitoring is often required during treatment.
What precautions are needed?
Patients may need monitoring for:
- Blood glucose levels
- Liver function
- Skin reactions
- Overall treatment tolerance
It may not be suitable for:
- Pregnancy
- Breastfeeding
- Patients with uncontrolled diabetes (without supervision)
Does Alpelisib interact with other medicines?
Yes. It may interact with:
- Diabetes medications
- Hormonal therapies
- Steroids
- Certain antibiotics or antifungal drugs
Always inform your doctor about all ongoing medications.
How is Alpelisib used in breast cancer treatment?
Alpelisib is part of a combination treatment approach.
It is commonly used with hormonal therapy to:
- Improve treatment response
- Delay disease progression
- Target specific cancer pathways
It is not used alone in most treatment plans.
Alpelisib 150 mg availability in the Philippines
In the Philippines, Alpelisib is considered a specialty oncology medicine.
It is typically accessed through:
- Hospital oncology departments
- Specialty medicine import channels
- Verified international suppliers
Availability may vary depending on prescription and sourcing requirements.
Frequently asked questions
Is Alpelisib chemotherapy?
No. It is a targeted therapy that acts on a specific cancer pathway.
Do I need a prescription?
Yes, it must be prescribed by an oncologist.
Can it cure breast cancer?
It is used to control disease progression, not to guarantee a cure.
Is genetic testing required?
Yes, PIK3CA mutation testing is required before use.
How is it taken?
Once daily with food under medical supervision.
Is it available in the Philippines?
Yes, through specialty medicine channels depending on availability.
Can it be used alone?
Usually no, it is combined with hormonal therapy.
Medical disclaimer
This information is for educational purposes only and is not a substitute for professional medical advice. Alpelisib should only be used under the supervision of a qualified healthcare professional.
