A nurse is administering an antidepressant medication to a client. The nurse should understand that which of the following is the major difference between selective serotonin reuptake inhibitors (SSRIs) and tricyclic antidepressants (TCAs)?

A reason: SSRIs are more effective in relieving manifestations. Both SSRIs and TCAs are effective in treating depression, but SSRIs are generally preferred due to their more favorable side effect profile. Effectiveness can vary among individuals, so this statement is not a significant differentiator. B reason: SSRIs produce a more sedative effect. SSRIs are generally less sedating than TCAs. TCAs are known for their sedative properties and are often prescribed for clients who need help with insomnia related to depression. C reason: TCAs are lethal in overdose. One major difference between TCAs and SSRIs is the toxicity level in overdose. TCAs can be lethal in overdose due to their cardiotoxic effects, making them more dangerous compared to SSRIs, which have a lower risk of toxicity. D reason: TCAs have fewer cardiovascular effects. TCAs have more cardiovascular side effects, such as arrhythmias and orthostatic hypotension, compared to SSRIs. This statement is incorrect as TCAs are associated with higher cardiovascular risks.