Excerpt from Clutter's post above:
'My GP prescribed 5mg folic acid for a couple of months to correct folate deficiency'.
Excerpt from info on Colecalciferol:
'Treatment of vitamin D deficiency: 1-5 capsules (800- 4 000 IU) daily for 10 weeks dependent upon the severity of the disease and the patient's response to treatment, followed by maintenance therapy of 1-2 capsules (800- 1 600 IU) daily, as directed by your doctor. Follow-up serum 25(OH)D measurements should be made approximately three to four months after initiating maintenance therapy to confirm that the target level has been achieved.'
Personally, I would be looking at the top end of that to have any hope of correcting deficiency. (However, you mention '3200' - is this IU?) Even that sounds a little on the low side to get your levels up reasonably sharpish. Search this site for more advice on Vit D. You must, must, take Vit K2 Mk 7 with Vit D (search will tell you why). Consider magnesium supplementation, too, as Vit D hoovers it up - search on this, too - 'all magnesium was not created equal'. Take Vit D 4 hours away from thyroid meds.
(I am not medically qualified) (Wish I was - I'd put a bomb under their collective asses).
If you meant 'Jarrows' rather than 'Farrows', then yes, that is exactly what you should be taking.
Clutter's advice should be followed.