Ray Peats email response to getting off antidepressant use.
[Weaning off anti-depressants] Keeping the metabolic rate and cholesterol up is important, so that repair and adaptation will be quick. Progesterone reduces pain and anxiety, and pregnenolone would be the most convenient supplement for men, but it's hard to find products without allergens. Combining progesterone and DHEA or testosterone can produce the stabilizing effect without suppressing the libido. Benadryl and cyproheptadine are probably both helpful. Withdrawal from morphine and SSRIs and migraine involve some similar processes.
I knew someone who had been addicted to morphine and alcohol for 30 years, who was drinking quarts of beer and wine daily when he didn't have morphine, who had an opportunity for a good job if he could get sober. Starting progesterone at bedtime (and stopping the wine), he said it was the first time he didn't have a hangover in the morning. He used enough progesterone to neuter most people, but said it didn't affect his sex function; he was taking a lot of Cytomel and magnesium, but wasn't drunk again as long as I knew him, and his general health improved.
It depends on how much pregnenolone you can assimilate. People would use progesterone in amounts needed to stop the withdrawal symptoms, but pregnenolone doesn't have the powerful effects of progesterone, even in multi-gram quantities, so it's just a matter of seeing what it can do. As I understand the mechanism (migraine, withdrawal, etc.), estrogen-histamine-serotonin rise on a background of hypothyroid liver malfunction, cytomel (and/or sugar, selenium, B vitamins) allows the liver and other detoxifying systems to lower them, and the lower they are, the less progesterone or pregnenolone it takes to block the symptoms.