Drug Interactions between ATNAA and macimorelin

GENERALLY AVOID: Drugs that may blunt the growth hormone response to macimorelin such as muscarinic antagonists (e.g., atropine), anti-thyroid agents (e.g., propylthiouracil), and growth hormone products may impact the accuracy of the macimorelin diagnostic test.

MANAGEMENT: Concomitant use of drugs that can blunt the response to macimorelin should generally be avoided. A sufficient washout period following discontinuation of these drugs is recommended prior to macimorelin administration. The prescribing information recommends discontinuing growth hormone products for at least one week before administering the macimorelin diagnostic test.

Pralidoxime and other drugs within the family of compounds called oximes, such as obidoxime, may potentiate the pharmacologic effects of atropine. Signs of atropinization such as flushing, mydriasis, tachycardia, and dry mouth and nose may occur earlier than expected during coadministration with pralidoxime relative to administration of atropine alone, particularly if the total dose of atropine has been large and the administration of pralidoxime was delayed. Clinicians should be aware of the potential interaction and monitor patients as appropriate. Pralidoxime may be used in conjunction with atropine in the treatment of organophosphate insecticide poisoning and nerve agent poisoning in terrorism or chemical warfare.