OSI-774

What OSI-774 Means in Everyday Medical Language

OSI-774 is a medicine more commonly known as erlotinib hydrochloride or by its brand name, Tarceva. It is a targeted cancer drug that works by blocking a protein called the epidermal growth factor receptor (EGFR). Some cancer cells use EGFR to grow and spread, so blocking this protein may help slow or stop tumor growth. OSI-774 belongs to a group of drugs called tyrosine kinase inhibitors, which act on specific molecules involved in cancer cell growth.

Why OSI-774 Can Matter in Cancer Care

This drug is important because it offers a targeted treatment option for certain people with non-small cell lung cancer (NSCLC) that has spread and carries specific mutations in the EGFR gene. It is also used together with another chemotherapy drug, gemcitabine, to treat pancreatic cancer that cannot be removed by surgery or has spread. Targeted therapies like OSI-774 may work when other treatments do not and often have different side effects compared to traditional chemotherapy.

What Patients Might See or Hear About OSI-774

You might come across the names OSI-774, erlotinib hydrochloride, Tarceva, or CP-358,774 in your medical records, treatment plans, or discussions with your care team. These different names all refer to the same medicine. It’s common for one drug to have several names, including a chemical name, a research code name, and a brand name. If you hear any of these names, they mean the same treatment. Your doctor or nurse can explain how this drug fits into your care.

Where the Term Might Appear

OSI-774 may be mentioned in medical reports, treatment plans, clinical trial information, or drug information sheets. It is often discussed when talking about treatment options for lung or pancreatic cancer. Because it has several names, comparing the wording in your documents can help avoid confusion.

What OSI-774 Does Not Automatically Mean

Seeing the name OSI-774 or its other names does not mean you have a specific diagnosis or that this drug is the right treatment for you. It is simply the name of a medicine that may be part of a treatment plan. Whether it is appropriate depends on many factors, including the type of cancer, genetic changes in the cancer, and your overall health.

Common Questions to Ask Your Care Team

If OSI-774 comes up in your care, you might ask: What is this drug, and how does it work? Is it the right treatment for my cancer type and genetic profile? What are the possible side effects? How will we know if it is working? Are there other treatment options? Understanding these points can help you feel more informed and involved in your care.

How to Read OSI-774 in Context

Because OSI-774 has several names, it’s important to look at the full context in your medical records or discussions. Don’t assume the drug name alone tells the whole story. Always ask your care team to explain what it means for your specific situation, including how it fits with other treatments or tests.

Safety and Next Steps

This information is meant to help you understand what OSI-774 is and why it might be mentioned in your care. It is not medical advice and does not replace talking with your doctor or nurse. If you see this term in your records or hear it during visits, the best next step is to ask your care team to explain what it means for you personally and how it fits into your treatment plan.