belladonna alkaloids/phenobarbital - oral (cont.)
HOW TO USE: Take this medication by mouth as directed by your doctor. If you are taking the immediate-release tablets or liquid form of this medication, take it usually 3 to 4 times a day or as directed by your doctor.If you are using the liquid, carefully measure the dose using a special measuring device/spoon. Do not use a household spoon because you may not get the correct dose.If you are taking the extended-release tablets, take them usually every 12 hours or as directed by your doctor. Do not crush or chew extended-release tablets. Doing so can release all of the drug at once, increasing the risk of side effects. Also, do not split the tablets unless they have a score line and your doctor or pharmacist tells you to do so. Swallow the whole or split tablet without crushing or chewing.Antacids lower the absorption of this medication. If you are taking an antacid, take it at least 2 hours apart from this medication.The dosage is based on your medical condition and response to treatment. In children, the dosage is also based on weight.Do not increase your dose or take this drug more often without your doctor's approval. Your condition will not improve any faster and the risk of serious side effects may increase.This medication may cause withdrawal reactions, especially if it has been used regularly for a long time or in high doses. In such cases, withdrawal symptoms (such as anxiety, muscle twitching, shakiness, dizziness, worsening weakness, nausea, vomiting) may occur if you suddenly stop using this medication. Withdrawal from the phenobarbital can be severe and include seizures and (rarely) death. To prevent withdrawal reactions, your doctor may reduce your dose gradually. Consult your doctor or pharmacist for more details, and report any withdrawal reactions immediately.When this medication is used for a long time, it may not work as well. Your doctor may need to increase your dose or change your medication. Talk with your doctor if this medication stops working well.Along with its benefits, this medication may rarely cause abnormal drug-seeking behavior (addiction). This risk may be increased if you have abused alcohol or drugs in the past. Take this medication exactly as prescribed to lessen the risk of addiction.Tell your doctor if your condition persists or worsens.
SIDE EFFECTS: Dizziness, drowsiness, weakness, blurred vision, dry eyes, dry mouth, nausea, constipation, and abdominal bloating may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.To relieve dry mouth, suck (sugarless) hard candy or ice chips, chew (sugarless) gum, drink water, or use a saliva substitute. To relieve dry eyes, consult your pharmacist for artificial tears or other eye lubricants.To prevent constipation, eat a diet adequate in fiber, drink plenty of water, and exercise. Consult your pharmacist for help in selecting a laxative (such as a stimulant type with stool softener).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 immediately if any of these unlikely but serious side effects occur: decreased sweating, dry/hot/flushed skin, fast/irregular heartbeat, loss of coordination, slurred speech, fainting, mental/mood changes (such as confusion, agitation, unusual excitement, depression, rare thoughts of suicide), eye pain, vision changes, difficulty urinating, decreased sexual ability, slow/shallow breathing.Tell your doctor immediately if any of these rare but serious side effects occur: signs of anemia (such as unusual tiredness, pale skin), signs of infection (such as fever, persistent sore throat), easy bruising/bleeding.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.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Medically Reviewed by a Doctor on 4/16/2014
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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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