When you suspect your patient is hypothyroid:

Your patient has a TSH of 8.0 (rr 0.5 – 4.5), a Free T4 of 0.7 (rr 0.82 – 1.77) and a Free T3 of 2.2 (rr 2.0 – 4.4). Your optimal first Rx could be:

Pharmaceutical Levothyroxine is:

Which of the multicolored T4 dosages is free of color:

A good starting dose of T4 is, depending on patient sensitivity:

Your patient has a TSH of 2.9 (rr 0.5 – 4.5), a Free T4 of 0.95 (rr 0.82 – 1.77) and a Free T3 of 1.75 (rr 2.0 – 4.4). Your optimal first Rx could be:

Liothyronine has a longer half life than Levothyroxine:

Comercial T3 (Cytomel) has a longer half life than Levothyroxine (T4):

Comercial T3 (Cytomel) comes in two dosage strengths: 5 mcg & 25 mcg

Comercial T3 (Cytomel) should be administered q.d. only:

Compounded T3 should be administered in extended release or “Long Acting” form (“LAT3”):

A common starting dose of LAT3 is:

A common ultimate upper limit dosage for LAT3 is:

LA T3 should be administered with T4: