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Silenor (Doxepin Hydrochloride)
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Doxepin Hydrochloride Information
(dox' e pin)
Doxepin (Silenor) is used to treat insomnia (difficulty falling asleep or staying asleep) in people who have trouble staying asleep. Doxepin (Silenor) is in a class of medications called tricyclic antidepressants. It works by slowing activity in the brain to allow sleep.
Doxepin is also available as a capsule and liquid to treat depression and anxiety. This monograph only gives information about doxepin (Silenor) for insomnia. If you are using this medication for depression or anxiety, read the monograph entitled doxepin (depression, anxiety).
Doxepin (Silenor) comes as a tablet to take by mouth. It is usually taken once a day, within 30 minutes of bedtime. Do not take doxepin (Silenor) within 3 hours of a meal. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take doxepin (Silenor) exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
You will probably become very sleepy soon after you take doxepin (Silenor) and will remain sleepy for some time after you take the medication. Plan to go to bed right after you take doxepin (Silenor) and to stay in bed for 7 to 8 hours. Do not take doxepin (Silenor) if you will be unable to go to bed right away and remain asleep for 7 to 8 hours after taking the medication.
You should begin to sleep better during the first few days of treatment with doxepin (Silenor). If your sleep does not improve within 7-10 days, or gets worse call your doctor.
Before taking doxepin (Silenor),
tell your doctor and pharmacist if you are allergic to doxepin (Silenor), amoxapine, loxapine, any other medications, or any of the ingredients in doxepin (Silenor) tablets. Ask your pharmacist or check the Medication Guide for a list of the ingredients.
tell your doctor if you are taking a monoamine oxidase (MAO) inhibitor such as isocarboxazid (Marplan), phenelzine (Nardil), selegiline (Eldepryl, Emsam, Zelapar), and tranylcypromine (Parnate), or if you have stopped taking an MAO inhibitor within the past 14 days. Also tell your doctor if you are taking or receiving methylene blue (Provayblue) or linezolid (Zyvox). Your doctor will probably tell you not to take doxepin. If you stop taking doxepin, you should wait at least 14 days before you start to take an MAO inhibitor.
tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention any of the following: cimetidine (Tagamet); medications for cough, cold, or allergies; quinidine (in Nuedexta); sedatives; selective serotonin reuptake inhibitors (SSRIs) such as citalopram (Celexa), escitalopram (Lexapro), fluoxetine (Prozac, Sarafem, Selfemra, in Symbyax), fluvoxamine (Luvox), paroxetine (Brisdelle, Paxil, Pexeva), and sertraline (Zoloft); other sleeping pills; tolazamide; and tranquilizers. Your doctor may need to change the doses of your medications or monitor you carefully for side effects. Many other medications may also interact with doxepin (Silenor), so be sure to tell your doctor about all the medications you are taking, even those that do not appear on this list.
tell your doctor if you have or have ever had glaucoma that is not being treated, or urinary retention (inability to empty your bladder completely or at all). Your doctor may tell you not to take doxepin (Silenor).
tell your doctor if you have or have ever drunk large amounts of alcohol, used street drugs, or over-used prescription medications. Also tell your doctor if you have or have ever had depression, mental illness, suicidal thoughts, sleep apnea (a sleep disorder that causes breathing to stop for short periods during sleep), or kidney or liver disease.
tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking doxepin (Silenor), call your doctor.
you should know that doxepin (Silenor) may make you drowsy. Do not drive a car, operate machinery, or do other dangerous activities at night after taking doxepin (Silenor). Do not drive a car or operate machinery the next day until you know how this medication affects you.
you should know that alcohol can add to the drowsiness caused by this medication. Do not drink alcohol while you are taking doxepin (Silenor).
you should know that some people who took doxepin (Silenor) got out of bed and drove their cars, prepared and ate food, had sex, made phone calls, were sleep-walking, or were involved in other activities while not fully awake. After they woke up, these people were usually unable to remember what they had done. Call your doctor right away if you find out that you have been driving or doing anything else unusual while you were sleeping.
Unless your doctor tells you otherwise, continue your normal diet.
Doxepin (Silenor) should only be taken at bedtime. If you did not take doxepin (Silenor) before you went to bed and you are having trouble sleeping, you may take doxepin (Silenor) if you will be able to stay in bed for at least 7 to 8 hours afterward. Do not take a double dose of doxepin (Silenor) to make up for a missed dose.
Doxepin (Silenor) may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
Doxepin (Silenor) may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from light, and excess heat and moisture (not in the bathroom).
Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. Talk to your pharmacist or contact your local garbage/recycling department to learn about take-back programs in your community. See the FDA's Safe Disposal of Medicines website (http://goo.gl/c4Rm4p) for more information if you do not have access to a take-back program.
It is important to keep all medication out of sight and reach of children as many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and young children can open them easily. To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location – one that is up and away and out of their sight and reach. http://www.upandaway.org
In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at https://www.poisonhelp.org/help. If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911.
Keep all appointments with your doctor.
Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
What are Generics
A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, how it is taken, 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 and works the same way in the body in the same amount of time.
The only differences between generics and their brand-name counterparts is the generics are less expensive and may look slightly different (e.g. different shape or color), as trademark 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 invent a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name drug and sell it at substantial discounts.
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