PRECAUTIONS: Before taking hyoscyamine, tell your doctor or pharmacist if you are allergic to it; 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.This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: glaucoma (narrow-angle type, untreated open-angle type), enlarged prostate, urinary blockage problems, certain stomach/intestinal problems (e.g., slow gut, blockage, severe ulcerative colitis, infection), heart problems due to severe bleeding.Before using this medication, tell your doctor or pharmacist your medical history, especially of: overactive thyroid, other heart problems (e.g., coronary heart disease, congestive heart failure, fast heartbeat, arrhythmias), high blood pressure, kidney disease, heartburn problems (acid reflux, hiatal hernia), certain nervous system problem (autonomic neuropathy), myasthenia gravis.Contact lens wearers may need to use wetting eye drops since this medication can cause dry eyes.This medicine may contain aspartame. If you have phenylketonuria (PKU) or any other condition where you must restrict your intake of aspartame (or phenylalanine), consult your doctor or pharmacist regarding the safe use of this medicine.This drug may make you dizzy or drowsy or cause blurred vision. Do not drive, use machinery, or do any activity that requires alertness or clear vision until you are sure you can perform such activities safely. Limit alcoholic beverages.This drug may increase the risk for heatstroke because it decreases sweating. Avoid becoming overheated in hot weather, saunas, and during exercise or other strenuous activity.Older adults may be more sensitive to the side effects of this drug, especially confusion, drowsiness, unusual excitement, constipation, and difficulty urinating. Confusion and drowsiness can increase the risk of falling.Children may be more sensitive to the effects of this drug.Hyoscyamine should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor.This drug passes into breast milk. Consult your doctor before breast-feeding.
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