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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Esbriet® (pirfenidone) is a prescription medicine used to treat people with a lung disease called idiopathic pulmonary fibrosis (IPF). It is not known if Esbriet is safe and effective in children.
What should you avoid while taking Esbriet? Direct exposure to sunlight, or light from sunlamps and tanning beds. Other medicines that can make your skin sensitive to sunlight. Smoking, which may affect how well Esbriet works.
Esbriet may cause serious side effects, including: liver problems. Call your doctor if you have symptoms such as yellowing of your skin or eyes, dark or brown urine, pain on the upper right side of your stomach area, bleeding or bruising more easily than normal, or increased fatigue. Your doctor will also do regular blood tests to check your liver. sun sensitivity and rash. When you are outside, use sunscreen (SPF 50) and wear a hat and clothes that cover your skin to avoid getting a sunburn. stomach problems. Esbriet may cause stomach problems such as nausea, vomiting, diarrhea, indigestion, heartburn, and stomach pain. Your doctor may change your dose or discontinue Esbriet if side effects do not go away. The most common side effects of Esbriet include upper respiratory tract infections, feeling tired, headache, dizziness, loss of appetite, sinusitis, insomnia, or weight loss. These are not all the possible side effects of Esbriet.