On a related note, there's no good half-life calculator on the web for people tapering off SSRIs. The issue is that in order to actually have as gentle a taper as possible, you need to halve your dose only every few weeks because of how long the half life of these drugs is. So ideally you'd want something where you would enter your starting dose and how much of the drug you plan on taking each day, and it would show…
The meds with worst discontinuation effects are those with short half life. Those with longer half life tend to have gentler discontinuation effects.
EG https://www.ncbi.nlm.nih.gov/pubmed/10855379/
> Serotonin re-uptake inhibitor withdrawal syndrome generally begins within 24 to 48 hours after discontinuing the drug. Signs reach their maximum on day 5 and usually resolve within 2 to 3 weeks. Withdrawal syndrome is more common with short half-life drugs (paroxetine, fluvoxamine). The intensity of the clinical signs depends on the daily dose and how long the drug has been given.