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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.
Viramune is used for treating HIV infection. It must be used along with other HIV medicines. Viramune is a nonnucleoside reverse transcriptase inhibitor (NNRTI). It works by blocking the growth of HIV.
Follow all directions on your prescription label. Your doctor may occasionally change your dose. Do not use Viramune XR in larger or smaller amounts or for longer than recommended. Starting with a low dose can reduce your risk of skin reactions. Carefully follow your doctor's instructions about how often to take this medicine.
Each VIRAMUNE XR extended-release tablet contains the inactive ingredients lactose monohydrate, hypromellose, iron oxide yellow CI77492 and magnesium stearate.
Viramune XR can cause severe or fatal liver problems. Stop taking Viramune XR and call your doctor at once if you have: nausea, loss of appetite, upper stomach pain, tiredness, fever, unexplained muscle pain or weakness, dark urine, clay-colored stools, or jaundice (yellowing of the skin or eyes).
Get emergency medical help if you have signs of an allergic reaction: joint or muscle pain, fever, mouth sores, facial swelling, blistering skin rash, flu symptoms, swollen glands, feeling weak or tired, severe tingling or numbness, pain or burning when you urinate, swelling in your legs or feet, cough, chest pain, trouble breathing, or swelling in your lips, tongue, or throat.