A client is taking cyclobenzaprine (Flexeril) for acute muscle spasms of the back. The nurse educates the client on which possible anticholinergic side effects associated with this medication? (Select all that apply)

Choice A reason: Tachycardia, or an increased heart rate, is one of the anticholinergic side effects associated with cyclobenzaprine. Anticholinergic medications block the action of acetylcholine, a neurotransmitter that is involved in many bodily functions including heart rate regulation. By inhibiting acetylcholine, these medications can lead to an increase in heart rate, making tachycardia a possible and notable side effect. Choice B reason: Excessive lacrimation, or excessive tearing, is not typically associated with anticholinergic side effects. In fact, anticholinergic medications tend to reduce bodily secretions, leading to dryness in areas such as the eyes, mouth, and other mucous membranes. Therefore, excessive lacrimation would not be expected and is not a relevant side effect of cyclobenzaprine. Choice C reason: Decreased urination, or urinary retention, is a known anticholinergic side effect. Anticholinergic medications can interfere with the normal function of the bladder, making it difficult to initiate urination or empty the bladder completely. This can lead to decreased urination and discomfort, which is important for patients to be aware of while taking these medications. Choice D reason: Excessive sweating is not typically associated with anticholinergic side effects. Anticholinergic medications generally reduce sweating by inhibiting the action of acetylcholine on sweat glands. As a result, patients taking these medications may experience decreased sweating rather than an increase, making excessive sweating an incorrect choice in this context. Choice E reason: Dry mouth is one of the classic anticholinergic side effects and is commonly experienced by patients taking cyclobenzaprine. The reduction in saliva production due to the inhibition of acetylcholine can cause significant discomfort and difficulty in speaking or swallowing. Patients should be informed about this side effect so they can take steps to manage it, such as staying hydrated or using saliva substitutes.