Mailisheng (Aggrastin α) – Neutropenia | HongKong DengYue Medicine
- Generic Name/Brand Name: Aggrastin α / Mailisheng®
- Indications: Neutropenia
- Dosage Form: Injection
- Specification: 20 mg × 1 vial/box
Aggrastin α Application Scope
Indicated for adult patients with non-myeloid malignancies undergoing chemotherapy that is likely to cause febrile neutropenia, to reduce the incidence of infections manifested as febrile neutropenia.

Aggrastin α Characteristics
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Ingredients: Recombinant human granulocyte colony-stimulating factor (G-CSF) α fused with human serum albumin (HSA).
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Properties: A fourth-generation long-acting G-CSF utilizing HSA fusion technology to extend the half-life in the body, reducing dosing frequency and improving patient compliance.
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Packaging Specification: 20 mg per vial.
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Storage: Store at 2–8°C, protected from light.
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Expiry Date: Refer to the packaging label.
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Executive Standard: Chinese Pharmacopoeia 2020 Edition.
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Approval Number: National Drug Approval No. H20250031.
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Date of Revision: May 2025.
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Manufacturer: Qilu Pharmaceutical Co., Ltd.
Guidelines for the Use of Mailisheng
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Dosage and Administration:
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Recommended Dose: 500 μg/kg, administered subcutaneously on the third day after the end of the chemotherapy cycle.
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Administration: Subcutaneous injection.
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Missed Dose: If a dose is missed, administer as soon as possible. Consult a healthcare professional for guidance.
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Adverse Reactions:
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Common Adverse Reactions:
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Injection site reactions
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muscle pain
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fatigue
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Serious Adverse Reactions:
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Allergic reactions
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chest pain
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difficulty breathing
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Contraindications: Contraindicated in patients with known hypersensitivity to this product or its components.
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Precautions:
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Assess the patient’s history of allergies to G-CSF-like drugs before use
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regularly monitor the injection site.
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Aggrastin α Interactions
- Currently, there is no specific data available regarding drug interactions.
- During treatment with this product, avoid concurrent use with other G-CSF-like drugs to reduce the risk of adverse reactions.
Note:
- If there is a new packaging for the drug, the new packaging shall prevail. The above information is sourced from DengYue Medicine.
- This content is for reference only. Prescription drugs must be used under a doctor’s guidance and purchased from authorized sources.










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