Thyrel Trh Pharmacology, Pharmacokinetics, Studies, Metabolism - Protirelin

Thyrel Trh Pharmacology, Pharmacokinetics, Studies, Metabolism - Protirelin

CLINICAL PHARMACOLOGY

Pharmacologically, Thyrel TRH increases the release of the thyroid stimulating hormone (TSH) from the anterior pituitary. Prolactin release is also increased. It has recently been observed that approximately 65% of acromegalic patients tested respond with a rise in circulating growth hormone levels; the clinical significance is as yet not clear. Following intravenous administration, the mean plasma half-life of protirelin in normal subjects is approximately five minutes. TSH levels rise rapidly and reach a peak at 20 to 30 minutes. The decline in TSH levels takes place more slowly, approaching baseline levels after approximately three hours.