A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.
The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.
Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.
Keytruda (pembrolizumab) is an intravenous (IV) medication used to treat the following types of cancer:
Your healthcare provider will determine the right dose of Keytruda for you and how many treatments you should receive. Your healthcare provider will administer the medication through an IV over 30 minutes. Keytruda is usually administered every 3 or 6 weeks.
Talk to your doctor about any questions or concerns you may have about the medication.
The active ingredient in Keytruda is pembrolizumab. Inactive ingredients include L-histidine, polysorbate 80, sucrose, and Water for Injection.
There are no contraindications according to the Keytruda Prescribing Information.
Common Keytruda side effects include fatigue, musculoskeletal pain, rash, diarrhea, fever, cough, decreased appetite, itching, shortness of breath, constipation, pain, stomach pain, nausea, and hypothyroidism. Other side effects may also occur. Call your doctor right away if you develop side effects that are bothersome or persistent.
Keytruda (pembrolizumab) injection, for intravenous use. Whitehouse Station, NJ: Merck & Co., Inc.; 2023.