Bentyl Side Effects
Generic Name: dicyclomine
Note: This page contains information about the side effects of dicyclomine. Some of the dosage forms included on this document may not apply to the brand name Bentyl.
Not all side effects for Bentyl may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.
For the Consumer
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.
For Healthcare Professionals
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
More about Bentyl (dicyclomine)
Related treatment guides
Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. Drugs.com does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.