Final answer:
The full therapeutic effect of an SSRI is not seen within 2-3 days but typically several weeks. Mild GI upset is a common side effect in the first weeks of use. SSRIs can be used cautiously in patients with cardiovascular disease and can have photosensitizing effects.
Step-by-step explanation:
When prescribing a selective serotonin reuptake inhibitor (SSRI), the nurse practitioner considers that there will not be a full therapeutic effect within 2-3 days of the first dose. It is important to note that SSRIs require more time, typically several weeks, to achieve their full effect on mood elevation in depressed patients. This extended period is necessary for the SSRI to consistently prevent the reuptake of serotonin and hence increase its levels in the central nervous system.
Mild GI upset is often reported in the first weeks of use among patients starting SSRIs. This is one of the more common side effects, along with potential weight gain, fatigue, dizziness, and loss of sexual desire. While SSRIs can be used in patients with cardiovascular disease, it is essential to approach with caution and monitor for any possible adverse effects.
Furthermore, while not prominent, SSRIs can have photosensitizing effects. However, this is not generally a primary concern when prescribing an SSRI, but patients should be counseled about potential sensitivity to sunlight and advised to use sun protection as a precautionary measure.