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.
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INDICATIONS LONSURF is a prescription medicine used to treat adults with •colorectal cancer that has spread to other parts of the body and who have been previously treated or cannot receive certain chemotherapy medicines. •a kind of stomach cancer called gastric cancer including cancer of the gastroesophageal junction that has spread to other parts of the body and who have been previously treated or cannot receive certain chemotherapy medications. It is not known if LONSURF is safe and effective in children
LONSURF may cause serious side effects, including: •Low blood counts. Low blood counts are common with LONSURF and can sometimes be severe and life-threatening. LONSURF can cause a decrease in your white blood cells, red blood cells, and platelets. Low white blood cells can make you more likely to get serious infections that could lead to death. Your healthcare provider should do blood tests before you receive LONSURF, at day 15 during treatment with LONSURF, and as needed to check your blood cell counts. Your healthcare provider may lower your dose of LONSURF or stop LONSURF if you have low white blood cell or platelet counts Tell your healthcare provider right away if you get any of the following signs and symptoms of infection during treatment with LONSURF: fever, chills, or body aches. Before taking LONSURF, tell your healthcare provider about all of your medical conditions, including if you: •Have kidney or liver problems •Are pregnant or plan to become pregnant. LONSURF can harm your unborn baby. •Females who can become pregnant: Your healthcare provider will verify your pregnancy status before you start treatment with LONSURF. You should use effective birth control during and 6 months after the last dose of treatment with LONSURF. Tell your healthcare provider immediately if you become pregnant • Males, while on treatment and for 3 months after your last dose of LONSURF, you should use a condom during sex with female partners who are able to become pregnant. Tell your healthcare provider right away if your partner becomes pregnant while you are taking LONSURF •Are breast-feeding or plan to breast-feed. It is not known if LONSURF passes into your breast milk. Do not breast-feed during treatment with LONSURF and for 1 day after your last dose of LONSURF Tell your healthcare provider about all the prescription and over-the-counter medicines, vitamins, and herbal supplements you take. The most common side effects with LONSURF include tiredness (fatigue, weakness), nausea, decreased appetite, diarrhea, vomiting, abdominal pain, and fever. Tell your doctor if you have nausea, vomiting, or diarrhea that is severe or that does not go away. These are not all of the possible side effects of LONSURF. For more information, ask your healthcare provider. Call your doctor for medical advice about side effects.