Natalizumab is a biological agent used for the treatment of relapsing multiple sclerosis. Due to its special pharmacological effects and strict medication requirements, attention should be paid to issues such as the legality of purchasing channels and the identification of genuine vs. counterfeit drugs when buying it.

How to Purchase Natalizumab

Overseas Purchase

Patients may choose to consult and purchase Natalizumab at hospital pharmacies or formal drugstores in countries or regions where the drug has been marketed.

Since drug prices may be affected by factors such as regional differences and exchange rate fluctuations, patients need to make a budget and plan in advance before purchasing.

Purchase through Medical Service Institutions

Patients can consult domestic overseas medical service institutions that cooperate with international pharmacies or pharmaceutical companies.

These institutions can usually provide legal import channels and offer professional consultation and guidance.

Precautions for Purchasing Natalizumab

Prescription Requirement

Natalizumab must be purchased with a doctor's prescription and used under the supervision of professional medical personnel.

Purchasing or using the drug without a doctor's evaluation may pose serious risks.

Drug Storage Conditions

Natalizumab needs to be stored refrigerated at 2-8°C, avoiding freezing or shaking.

When purchasing, it is necessary to confirm that the drug transportation and storage meet cold chain requirements to ensure the efficacy of the drug.

Medication Monitoring

Since Natalizumab may cause severe adverse reactions (such as allergic reactions and increased infection risk), regular medical monitoring is required after purchase, including blood tests and imaging evaluations.

Avoid Concurrent Use with Other Immunosuppressants

Natalizumab should not be used concurrently with other immunosuppressants, otherwise the risk of infection may increase.

Patients should inform doctors of their current medication status when purchasing the drug.

How to Identify Genuine vs. Counterfeit Natalizumab

Inspect Packaging and Labels

Drug Name: The genuine product packaging should clearly indicate "TYSABRI® (natalizumab)" and information about the manufacturer (e.g., Biogen Idec Inc.).

Batch Number and Expiration Date: Each vial of the drug should have a unique batch number and expiration date, and the authenticity can be verified through the pharmaceutical company's official website or customer service.

Appearance: The drug is a colorless to slightly opalescent white liquid. If turbidity, precipitation, or discoloration is found, it may be a counterfeit or deteriorated product.

Check the Drug Instruction Manual

The genuine product is accompanied by a complete instruction manual, which includes information on ingredients, indications, contraindications, adverse reactions, etc.

If the instruction manual is missing or the content is incomplete, vigilance should be exercised against counterfeit products.