Before taking hyoscyamine, tell your doctor or pharmacist if you are allergic to it; or to atropine; 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: personal or family history of glaucoma (angle-closure 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 medication may contain alcohol. Caution is advised if you have alcohol dependence or liver disease. Ask your doctor or pharmacist about the safe use of this product.
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. Limit alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).
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.