Dicyclomine, a medication used to treat spasms of the gastrointestinal tract, can cause a range of side effects. Common adverse reactions include blurred vision, dry mouth, dizziness, drowsiness, and constipation [1]. Some individuals may also experience confusion, nervousness, or difficulty urinating [1].
What are the more serious side effects of dicyclomine?
More severe side effects, though less common, can occur. These include severe abdominal pain, difficulty breathing, rapid heart rate, and skin rash [1]. In rare cases, dicyclomine may lead to more serious issues such as hallucinations or an increased risk of heat stroke due to reduced sweating [1].
Who should avoid taking dicyclomine?
Certain individuals should not take dicyclomine or should use it with caution. This includes people with glaucoma, as it can worsen the condition. It is also contraindicated in individuals with myasthenia gravis, gastrointestinal obstruction, paralytic ileus, or toxic megacolon [1]. Patients with heart problems, high blood pressure, or an enlarged prostate should consult their doctor before use [1]. Dicyclomine is also not recommended for use in infants under six months due to the risk of respiratory depression [1].
How does dicyclomine work?
Dicyclomine functions by directly acting on smooth muscle in the gastrointestinal tract. It blocks the action of acetylcholine at muscarinic receptors, which helps to relieve spasms and cramps [2]. This anticholinergic effect reduces muscle tone and motility in the gut [2].
How long does it take for dicyclomine side effects to appear?
Side effects from dicyclomine can manifest relatively quickly after starting the medication, often within the first few days of treatment. The onset and severity can vary depending on the individual's dosage and their sensitivity to the drug's anticholinergic properties [1].
What are the alternatives to dicyclomine for digestive issues?
For individuals experiencing gastrointestinal spasms, other treatment options may be available. These can include other antispasmodic medications with different mechanisms of action, such as hyoscyamine or peppermint oil capsules, which also act on smooth muscle [3]. Dietary changes, stress management techniques, and other classes of medications like anticholinergics or medications targeting specific digestive conditions may also be considered by healthcare providers [3].
How is dicyclomine prescribed and dosed?
Dicyclomine is typically prescribed as an oral capsule, tablet, or liquid suspension. The dosage is determined by the patient's age and the severity of their condition. For adults, common starting doses range from 10 mg to 20 mg, taken three to four times a day. Doses may be adjusted by a healthcare provider based on the patient's response and tolerance [1].
Sources:
[1] https://www.drugs.com/sfx/dicyclomine-side-effects.html
[2] https://www.ncbi.nlm.nih.gov/books/NBK557858/
[3] https://www.mayoclinic.org/diseases-conditions/irritable-bowel-syndrome/diagnosis-treatment/drc-20360064