Before taking this medication, tell your doctor or pharmacist if you are allergic to hyoscyamine, atropine, or scopolamine; or to anti-seizure medications (such as carbamazepine, fosphenytoin, oxcarbazepine, phenytoin, primidone); 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: personal or family history of glaucoma (angle-closure type), problems with urination (due to enlarged prostate, a blocked urinary tract), other stomach/intestinal problems (such as slow gut, blockage, ulcerative colitis, infection, little/no stomach acid, ileostomy/colostomy patients with diarrhea), overactive thyroid, heart problems (such as coronary artery disease, angina, heart failure, fast/irregular heartbeat, heart problems due to severe bleeding), high blood pressure, heartburn problems (such as acid reflux, hiatal hernia, esophagus problems), certain nervous system problem (autonomic neuropathy), myasthenia gravis, liver problems, kidney problems, a certain blood disorder (porphyria), restlessness or excitement during past use of phenobarbital, breathing/lung problems, personal or family history of a substance use disorder (such as overuse of or addiction to drugs/alcohol), mental/mood conditions (such as depression, thoughts of suicide, psychosis).
This drug may make you dizzy or drowsy or blur your vision. Alcohol or marijuana (cannabis) can make you more dizzy or drowsy. Do not drive, use machinery, or do anything that needs alertness or clear vision until you can do it safely. Avoid alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).
The liquid form of this product may contain alcohol or sugar. Caution is advised if you have diabetes, alcohol dependence, liver disease, or any other condition that requires you to limit/avoid these substances in your diet. Ask your doctor or pharmacist about using this product safely.
This medication may make you sweat less, making you more likely to get heat stroke. Avoid doing things that may cause you to overheat, such as hard work or exercise in hot weather, or using hot tubs. When the weather is hot, drink a lot of fluids and dress lightly. If you overheat, quickly look for a place to cool down and rest. Get medical help right away if you have a fever that does not go away, mental/mood changes, headache, or dizziness.
Older adults may be more sensitive to the side effects of this drug, especially drowsiness, confusion, unusual excitement, constipation, and urination problems. Drowsiness and confusion can increase the risk of falling.
Children may be more sensitive to the side effects of this drug. This drug can often cause excitement instead of drowsiness in young children.
Tell your doctor if you are pregnant or plan to become pregnant. You should not become pregnant while using belladonna alkaloids/phenobarbital. This medication may harm an unborn baby. Ask about reliable forms of non-hormonal birth control (such as condoms, diaphragm with spermicide) while using this medication. If you become pregnant, talk to your doctor right away about the risks and benefits of this medication.
This medication passes into breast milk and may have undesirable effects on a nursing infant. Consult your doctor before breastfeeding.