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You are here : 3-RX.com > Drugs & Medications > Detailed Drug Information (USP DI) > Anticholinergics/Antispasmodics : Side Effects

Anticholinergics/Antispasmodics (Systemic)

Anticholinergics/Antispasmodics | Before Using | Proper Use | Precautions | Side Effects | Additional Information

Side Effects of This Medicine

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:


      Confusion (especially in the elderly); dizziness, lightheadedness (continuing), or fainting; eye pain; skin rash or hives

    Symptoms of overdose

      Blurred vision (continuing) or changes in near vision; clumsiness or unsteadiness; confusion; convulsions (seizures); difficulty in breathing, muscle weakness (severe), or tiredness (severe); dizziness; drowsiness (severe); dryness of mouth, nose, or throat (severe); fast heartbeat; fever; hallucinations (seeing, hearing, or feeling things that are not there); slurred speech; unusual excitement, nervousness, restlessness, or irritability; unusual warmth, dryness, and flushing of skin

Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:

    More common

      Constipation (less common with hyoscyamine); decreased sweating; dryness of mouth, nose, throat, or skin

    Less common or rare

      Bloated feeling; blurred vision; decreased flow of breast milk; difficult urination; difficulty in swallowing; drowsiness (more common with high doses of any of these medicines and with usual doses of scopolamine when given by mouth or by injection); false sense of well-being (for scopolamine only); headache; increased sensitivity of eyes to light; lightheadedness (with injection); loss of memory; nausea or vomiting; redness or other signs of irritation at place of injection; trouble in sleeping (for scopolamine only); unusual tiredness or weakness

For patients using scopolamine :

  • After you stop using scopolamine, your body may need time to adjust. The length of time this takes depends on the amount of scopolamine you were using and how long you used it. During this period of time check with your doctor if you notice any of the following side effects:

Anxiety; irritability; nightmares; trouble in sleeping

For patients using the transdermal disk of scopolamine :

  • While using the disk or even after removing it, your eyes may become more sensitive to light than usual. You may also notice the pupil in one eye is larger than the other. Check with your doctor if this side effect continues or is bothersome

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.

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Anticholinergics/Antispasmodics: Precautions


Anticholinergics/Antispasmodics: Additional Information

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