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What is the most important information I should know about propantheline?

Use caution when driving, operating machinery, or performing other hazardous activities. Propantheline may cause dizziness, drowsiness, or blurred vision. If you experience dizziness, drowsiness or blurred vision, avoid these activities. Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are taking propantheline.

Avoid becoming overheated in hot weather. Propantheline increases the risk of heat stroke because it decreases sweating.

What is propantheline?

Propantheline reduces the secretions of certain organs in the body.

Propantheline helps to control conditions such as peptic ulcers that involve excessive stomach acid production.

Although not approved by the FDA for these purposes, propantheline has been used to treat other conditions involving spasms or excessive secretion.

Propantheline may also be used for purposes other than those listed in this medication guide.

Who should not take propantheline?

Do not take propantheline if you have

• kidney disease;

• a blockage of your urinary tract (difficulty urinating);

• a blockage in your intestines, severe ulcerative colitis, or ulcerative colitis complicated by toxic megacolon;

• glaucoma; or

• myasthenia gravis.

Before taking this medication, tell your doctor if you have

• numbness or tingling in your hands or feet;

• liver disease;

• ulcerative colitis;

• thyroid problems;

• high blood pressure, an irregular heart beat, or any type of heart disease;

• hiatal hernia or reflux esophagitis;

• enlargement of the prostate; or

• asthma, chronic lung disease, or allergies.

You may not be able to take propantheline or you may need a lower dose or special monitoring during treatment if you have any of the conditions listed above.

It is not known whether propantheline will harm an unborn baby. Do not take propantheline without first talking to your doctor if you are pregnant. It is not known whether propantheline passes into breast milk. Do not take propantheline without first talking to your doctor if you are breast-feeding a baby.

How should I take propantheline?

Take propantheline exactly as directed by your doctor. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you.

Take each dose with a full glass of water.

Propantheline is usually taken three or four times a day, 30 minutes before meals and at bedtime. Follow your doctor's instructions.

Store propantheline at room temperature away from moisture and heat.

What happens if I miss a dose?

Take the missed dose as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and take only your next regularly scheduled dose. Do not take a double dose of this medication.

What happens if I overdose?

Seek emergency medical attention.

Symptoms of a propantheline overdose include headache, nausea, vomiting, dry mouth, difficulty swallowing, blurred vision, dilated pupils, hot, dry skin, dizziness, drowsiness, confusion, anxiety, seizures, weak pulse, and an irregular heartbeat.

What should I avoid while taking propantheline?

Use caution when driving, operating machinery, or performing other hazardous activities. Propantheline may cause dizziness, drowsiness, or blurred vision. If you experience dizziness, drowsiness, or blurred vision, avoid these activities. Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are taking propantheline.

Avoid becoming overheated in hot weather. Propantheline increases the risk of heat stroke because it decreases sweating.