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Regurin Side Effects

Generic name: trospium

Medically reviewed by Last updated on Jul 11, 2023.

Note: This document contains side effect information about trospium. Some dosage forms listed on this page may not apply to the brand name Regurin.

Applies to trospium: oral capsule extended release, oral tablet.

Serious side effects of Regurin

Along with its needed effects, trospium (the active ingredient contained in Regurin) 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 immediately if any of the following side effects occur while taking trospium:

More common

Less common

Incidence not known

Other side effects of Regurin

Some side effects of trospium may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

Less common

Incidence not known

For Healthcare Professionals

Applies to trospium: oral capsule extended release, oral tablet.


Uncommon (0.1% to 1%): Tachycardia, chest pain

Frequency not reported: Tachyarrhythmia

Postmarketing reports: Palpitations, supraventricular tachycardia, chest pain, syncope, hypertensive crisis[Ref]


Common (1% to 10%): Abdominal pain, constipation aggravated, dyspepsia, flatulence, nausea, dyspepsia, abdominal distension

Uncommon (0.1% to 1%): Abdominal distention, vomiting, dry throat, diarrhea

Postmarketing reports: Gastritis[Ref]

Nervous system

Common (1% to 10%): Headache

Uncommon (0.1% to 1%): Dysgeusia

Rare (less than 0.1%): Dizziness[Ref]


Common (1% to 10%): Dry eyes

Uncommon (0.1% to 1%): Blurred vision

Rare (less than 0.1%): Vision disorders

Postmarketing reports: Vision abnormal[Ref]


Postmarketing reports: Confusion, hallucinations, somnolence, delirium, agitation[Ref]


Common (1% to 10%): Fatigue[Ref]


Uncommon (0.1% to 1%): Dry skin

Rare (0.01% to 0.1%): Rash

Very rare (less than 0.01%): Angioedema

Frequency not reported: Pruritus, Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN)[Ref]


Frequency not reported: Anaphylactic reaction[Ref]


Common (1% to 10%): Influenza[Ref]


Rare (less than 0.1%): Myalgia, arthralgia

Postmarketing reports: Rhabdomyolysis[Ref]


Frequency not reported: Mild to moderate increase in serum transaminase levels[Ref]


Common (1% to 10%): Nasopharyngitis, nasal dryness

Frequency not reported: Dyspnea[Ref]


1. "Product Information. Sanctura (trospium)." Odyssey Pharmaceuticals

2. Lopez Pereira P, Miguelez C, Caffarati J, Estornell F, Anguera A (2003) "Trospium chloride for the treatment of detrusor instability in children." J Urol, 170, p. 1978-81

3. Epstein BJ, Gums JG, Molina E (2006) "Newer agents for the management of overactive bladder." Am Fam Physician, 74, p. 2061-8

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.