Hyoscyamine / Phenyltoloxamine Side Effects

Applies to hyoscyamine / phenyltoloxamine: oral capsule.

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using hyoscyamine and phenyltoloxamine and call your doctor at once if you have:

• pounding heartbeats or fluttering in your chest;

• severe stomach cramps or constipation;

• little or no urination;

• confusion, memory problems, slurred speech;

• diarrhea; or

• problems with balance or muscle movement.

Side effects such as dry mouth, constipation, and confusion may be more likely in older adults.

Common side effects may include:

• dizziness, drowsiness;

• constipation;

• decreased sweating, decreased urination;

• dry mouth;

• blurred vision; or

• impotence, loss of interest in sex, or trouble having an orgasm.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

See also:

Further information

Hyoscyamine/phenyltoloxamine side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.

Medical Disclaimer