Note: This document contains side effect information about dicyclomine. Some of the dosage forms listed on this page may not apply to the brand name Bentyl.
Applies to dicyclomine: oral capsules and tablets, oral solution, parenteral injection
Side effects include:
Most adverse effects are manifestations of pharmacologic effects at muscarinic-cholinergic receptors and usually are reversible when therapy is discontinued.
Severity and frequency of adverse effects are dose related and individual intolerance varies greatly; although adverse effects occasionally may be obviated by a reduction in dosage, this also will likely eliminate potential therapeutic effects. If dosage of ≥80 mg daily cannnot be achieved because of intolerance, discontinue dicyclomine (the active ingredient contained in Bentyl)
Dry mouth, dizziness, blurred vision, nausea, light-headedness (especially with the injectable form), drowsiness, weakness, nervousness.
Applies to dicyclomine: compounding powder, intramuscular solution, oral capsule, oral syrup, oral tablet
-The most serious adverse reactions include cardiovascular and central nervous system symptoms.
-The most common adverse reactions are dizziness, dry mouth, vision blurred, nausea, somnolence, asthenia and nervousness, fever, tachycardia, agitation, and dry skin/mucous membranes.
Very common (10% or more): Dry mouth (33%), nausea (14%)
Rare (less than 0.1%): Constipation, anorexia
Frequency not reported: Thirst, delayed gastric emptying time, reduced gastric acid secretion, gastroesophageal reflux
Postmarketing reports: Abdominal distension, abdominal pain, dyspepsia, constipation, dry mouth, nausea, vomiting
Very common (10% or more): Dizziness (40%)
Common (1% to 10%): Somnolence, nervousness
Rare (less than 0.1%): Sedation, headache
Postmarketing reports: Dizziness, headache, somnolence, syncope
Very common (10% or more): Blurred vision (27%)
Frequency not reported: Follicular conjunctivitis, all muscarinic antagonists can precipitate glaucoma
Postmarketing reports: Cycloplegia, mydriasis, blurred vision
Common (1% to 10%): Asthenia
Frequency not reported: Fatigue
Postmarketing reports: Malaise, fatigue
Rare (less than 0.1%): Rash
Postmarketing reports: Allergic dermatitis, erythema, rash
Rare (less than 0.1%): Dysuria
Frequency not reported: Urinary retention, impotence in male patients
Postmarketing reports: Suppressed lactation
Postmarketing reports: Palpitations, tachyarrhythmias, thrombosis, thrombophlebitis
Postmarketing reports: Face edema, angioedema, anaphylactic shock
Postmarketing reports: Local pain, edema, skin color change, reflex sympathetic dystrophy syndrome (caused by inadvertent IV injection)
Postmarketing reports: Delirium or symptoms of delirium such as amnesia (or transient global amnesia), nervousness, agitation, confusional state, delusion, disorientation, hallucination (including visual hallucination), and mania, mood (altered and pseudodementia).
Postmarketing reports: Dyspnea, nasal congestion
Medically reviewed by BestRx Medical Team Last updated on 1/1/2020.
Source: Drugs.com Bentyl