Older adults should discuss the risks and benefits of this medication with their doctor or pharmacist, as well as other effective and possibly safer treatments.
How to use Seconal Capsule
Dosage is based on your medical condition and response to treatment.
Do not take more of this medication than prescribed. Doing so may increase side effects.
If you suddenly stop using this medication, you may have withdrawal symptoms (such as anxiety, vivid dreams, shaking hands/fingers, twitching, trouble sleeping). Withdrawal from secobarbital can be severe and include hallucinations, seizures and (rarely) death. To help prevent withdrawal, your doctor may lower your dose slowly. Withdrawal is more likely if you have used secobarbital for a long time or in high doses. Tell your doctor or pharmacist right away if you have withdrawal.
Though it helps many people, this medication may sometimes cause addiction. This risk may be higher if you have a substance use disorder (such as overuse of or addiction to drugs/alcohol). Take this medication exactly as prescribed to lower the risk of addiction. Ask your doctor or pharmacist for more details.
Sleepiness, trouble waking up, dizziness, excitation, headache, tiredness, loss of appetite, nausea, or vomiting may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if any of these unlikely but serious side effects occur: mental/mood changes (such as agitation, confusion, depression, hallucinations, thoughts of suicide, nightmares), slurred speech, staggering walk/clumsiness, double vision, memory problems.
Rarely, after taking this drug, people have gotten out of bed and driven vehicles while not fully awake ("sleep-driving"). People have also sleepwalked, or have prepared/eaten food, made phone calls, or had sex while not fully awake. Often these people do not remember these events. If you discover that you have done any of these things, tell your doctor right away. Drinking alcohol, taking other medications that cause drowsiness, or taking higher doses of secobarbital may increase your risk for this effect. Do not drink alcohol while using this medication.
Get medical help right away if you have any very serious side effects, including: slow/shallow breathing, fainting, slow heartbeat.
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Before taking secobarbital, tell your doctor or pharmacist if you are allergic to it; or to other barbiturates (such as phenobarbital); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: certain hormone problems (adrenal disease such as Addison's disease), liver problems, kidney problems, lung disease (such as sleep apnea, chronic obstructive pulmonary disease-COPD), mental/mood disorders (such as depression, thoughts of suicide), personal or family history of a substance use disorder (such as overuse of or addiction to drugs/alcohol), personal/family history of a certain blood disorder (porphyria).
This drug may make you dizzy or drowsy. Alcohol or marijuana (cannabis) can make you more dizzy or drowsy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Avoid alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).
Older adults may be more sensitive to the effects of this drug, especially drowsiness and dizziness. However, this drug can often cause excitement or confusion instead of drowsiness in older adults. Drowsiness, dizziness, and confusion can increase the risk of falling.
This medication is not recommended for use during pregnancy. It may harm an unborn baby. Consult your doctor for more details. Since birth control pills may not be effective if taken with this medication (see also Drug Interactions section), discuss reliable forms of birth control with your doctor. If you become pregnant while taking this medication, notify your doctor right away.
Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
Some products that may interact with this drug include: darunavir, MAO inhibitors (isocarboxazid, linezolid, methylene blue, moclobemide, phenelzine, procarbazine, rasagiline, safinamide, selegiline, tranylcypromine).
This medication can speed up the removal of other medications from your body, which may affect how they work. Examples of affected drugs include doxycycline, estrogens, griseofulvin, ranolazine, "blood thinners" such as warfarin, corticosteroids such as prednisone, calcium channel blockers such as felodipine/nimodipine, among others.
This medication may decrease the effectiveness of hormonal birth control such as pills, patch, or ring. This could cause pregnancy. Discuss with your doctor or pharmacist if you should use additional reliable birth control methods while using this medication. Also tell your doctor if you have any new spotting or breakthrough bleeding, because these may be signs that your birth control is not working well.
The risk of serious side effects (such as slow/shallow breathing, severe drowsiness/dizziness) may be increased if this medication is taken with other products that may also cause drowsiness or breathing problems. Tell your doctor or pharmacist if you are taking other products such as opioid pain or cough relievers (such as codeine, hydrocodone), alcohol, marijuana (cannabis), other drugs for sleep or anxiety (such as alprazolam, lorazepam, zolpidem), muscle relaxants (such as carisoprodol, cyclobenzaprine), or antihistamines (such as cetirizine, diphenhydramine).
If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: severe tiredness/dizziness, inability to wake up, very slow breathing rate.
Do not share this medication with others. Sharing it is against the law.
Keep all medical appointments so that your doctor can monitor your progress or check for side effects. For long-term use, laboratory and/or medical tests (such as blood counts, liver/kidney tests) should be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.
Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.Information last revised May 2019. Copyright(c) 2019 First Databank, Inc.
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