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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Silenor is a tricyclic antidepressant. Silenor tablets are used to treat insomnia in people who have trouble staying asleep. This medication guide provides information about the Silenor brand of doxepin used to treat insomnia. Sinequan and other generic brands of doxepin used to treat depression or anxiety are not covered in this medication guide. Silenor tablets are not for use in treating depression.
Take Silenor exactly as prescribed by your doctor. Follow all directions on your prescription label and read all medication guides or instruction sheets. Take this medicine within 30 minutes before bedtime. Do not take within 3 hours after eating. It may take 7 to 10 days before your insomnia symptoms improve. Keep using as directed and call your doctor if your symptoms do not improve after 10 days of treatment. Store at room temperature away from moisture, heat, and light. Keep the bottle tightly closed when not in use.
You should not use Silenor if you have untreated narrow-angle glaucoma or severe problems with urination. Do not use doxepin if you have used an MAO inhibitor in the past 14 days, such as isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, or tranylcypromine. Some people using this medicine have engaged in activity such as driving, eating, or making phone calls and later having no memory of the activity. If this happens to you, stop taking Silenor and talk with your doctor.
Get emergency medical help if you have signs of an allergic reaction to Silenor: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Some people using this medicine have engaged in activity while not fully awake and later had no memory of it. This may include walking, driving, or making phone calls. If this happens to you, call your doctor right away. Call your doctor at once if you have: unusual thoughts or behavior; confusion, hallucinations; depressed mood, thoughts about hurting yourself; uncontrolled muscle movements; a seizure; a light-headed feeling, like you might pass out; blisters or ulcers in your mouth, red or swollen gums, trouble swallowing; eye pain or redness; chest pain; low red blood cells (anemia) - pale skin, unusual tiredness, feeling light-headed or short of breath, cold hands and feet; or signs of infection - flu-like symptoms, swelling, skin redness, diarrhea, skin sores or white patches, trouble breathing, pain or burning when you urinate.