Antacids may reduce the amount of drug absorbed. May promote heat stoke in high temperatures due to decreased perspiration. May cause blurred vision and drowsiness. Nursing mothers note that hyoscyamine is excreted in breast milk. Dry mouth, blurred vision, increased heart rate, dry eyes, headache, nervousness, unrinary retention or hesitation and weakness.
Generic hyoscyamine extended-release capsules and tablets are available.
Take hyoscyamine tablets by mouth. Follow the directions on the prescription label. Swallow the tablets with a drink of water. Take the tablets 30 to 60 minutes before food. Do not take your medicine more often than directed.