Thyroid hormones are considered FDA pregnancy risk category A drugs. Desiccated thyroid hormones undergo minimal placental transfer and human experience does not indicate adverse fetal effects; do not discontinue needed replacement during pregnancy. Also, hypothyroidism diagnosed during pregnancy should be promptly treated. Measure TSH during each trimester to gauge adequacy of thyroid replacement dosage since during pregnancy thyroid requirements may increase. Immediately after obstetric delivery, dosage should return to the pre-pregnancy dose, monitor a serum TSH or other thyroid function tests 6—8 weeks postpartum to assess for needed adjustments.
Aldolase has also been implicated in many "moonlighting" or non-catalytic functions, based upon its binding affinity for multiple other proteins including F-actin , α-tubulin , light chain dynein , WASP , Band 3 anion exchanger, phospholipase D ( PLD2 ), glucose transporter GLUT4 , inositol trisphosphate , V-ATPase and ARNO (a guanine nucleotide exchange factor of ARF6 ). These associations are thought to be predominantly involved in cellular structure, however, involvement in endocytosis, parasite invasion, cytoskeleton rearrangement, cell motility, membrane protein trafficking and recycling, signal transduction and tissue compartmentalization have been explored.   
Extemporaneous preparation of a 25 mcg/mL levothyroxine oral suspension:
NOTE: Levothyroxine is not available as an FDA-approved oral suspension.
With a mortar and pestle, grind twenty-five mg levothyroxine tablets into a fine powder.
In a separate container, measure 40 mL glycerol.
Add a small amount of the glycerol to the fine powder and mix into a uniform paste. Add geometric amounts of the glycerol until the suspension is pourable.
Transfer suspension to a calibrated 100 mL amber bottle. In approximately 10 mL portions, rinse the mortar with the remaining glycerol and transfer washings into the amber bottle trying to leave no levothyroxine in the mortar.
Add water to the amber bottle to bring the total volume to 100 mL.
Label the bottle appropriately, including 'Shake well before each use' and 'Refrigerate'. The suspension is stable for 8 days when stored at 4 degrees Celsius.