Take this medication exactly as it was prescribed for you. Do not take the medication in
larger amounts, or take it for longer than recommended by your doctor. Follow the directions on
your prescription label.
Your medication may come with patient instructions for safe and effective use. Follow
these directions carefully. Ask your doctor or pharmacist if you have any questions.
extended-release tablet or capsule. Swallow the pill whole. It is specially made to release medicine slowly in the body.
Breaking or opening the pill would cause too much of the drug to be released at one time.
Measure the oral liquid form of hyoscyamine with a special
dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring
device, ask your pharmacist for one.
The sublingual tablet form of this medication must be placed under the
tongue, where it will dissolve. Do not swallow the sublingual tablet whole or wash it down with
water. You may drink water after the pill has completely dissolved in your mouth.
Before using hyoscyamine oral spray for the first time, you must prime
the spray pump. To do this, spray 3 test sprays into the air and away from your face. Prime the
spray pump at least 1 test spray any time you have not used the oral spray for longer than 2 days.
Spray until a fine mist appears.
After using the oral spray, try not to swallow right away. Do not rinse your mouth or spit
for 5 to 10 minutes after using the oral spray.
Hyoscyamine is usually taken before a meal. Follow your doctor's instructions.
Store this medication at room temperature away from moisture and heat.
Do not use hyoscyamine oral spray for more than 30 sprays, even if there is medicine still
left in the bottle.
What happens if I miss a dose?
Take the missed dose as soon as you remember. If it is almost time for your next dose,
skip the missed dose and take the medicine at your next regularly scheduled time. Do
not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention if you think you have used too much of this
medicine.
Overdose symptoms may include headache, dizziness, dry mouth, trouble swallowing,
nausea, vomiting, blurred vision, hot dry skin, and feeling restless or nervous.
What should I avoid while taking hyoscyamine?
Avoid taking antacids at the same time you take hyoscyamine. Antacids can make it
harder for your body to absorb hyoscyamine. If you use an antacid, take it after you have taken
hyoscyamine and eaten a meal.
Hyoscyamine can cause side effects that may impair your vision, thinking, or
reactions. Be careful if you drive or do anything that requires you to be awake and able to see
clearly.
Avoid drinking alcohol. It can increase drowsiness and dizziness while you are
taking hyoscyamine.
Avoid becoming overheated or dehydrated during exercise and in hot weather. Because
hyoscyamine reduces sweating, it can increase your risk of heat stroke.
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