Interaksi Deutetrabenazin dan Tetrabenazin

Taking tetrabenazine or valbenazine [see Drug Interactions ( 7.6 )] .

Taking reserpine, MAOIs, tetrabenazine, or valbenazine ( 4 , 7.2 , 7.3 , 7.6 )

Concomitant Tetrabenazine or Valbenazine AUSTEDO XR and AUSTEDO are contraindicated in patients currently taking tetrabenazine or valbenazine.

Following administration of 25 mg of tetrabenazine to healthy volunteers, peak plasma prolactin levels increased 4- to 5-fold.

Chronic increase in serum prolactin levels (although not evaluated in the AUSTEDO XR, AUSTEDO, or tetrabenazine development programs) has been associated with low levels of estrogen and increased risk of osteoporosis.

• Taking deutetrabenazine or valbenazine [see Drug Interactions ( 7.7 )] .

• Taking deutetrabenazine or valbenazine ( 4 , 7.7 )

Concomitant Deutetrabenazine or Valbenazine Tetrabenazine tablets are contraindicated in patients currently taking deutetrabenazine or valbenazine.

Certain conditions may increase the risk for torsade de pointes or sudden death such as (1) bradycardia; (2) hypokalemia or hypomagnesemia; (3) concomitant use of other drugs that prolong the QTc interval; and (4) presence of congenital prolongation of the QT interval [see Warnings and Precautions ( 5.8 ), Clinical Pharmacology (12.2) ].

…are known to prolong QTc, including antipsychotic medications (e.g., chlorpromazine, haloperidol, thioridazine, ziprasidone), antibiotics (e.g., moxifloxacin), Class 1A (e.g., quinidine, procainamide) and Class III (e.g., amiodarone, sotalol) antiarrhythmic medications or any other medications known to prolong the QTc interval [see Drug Interactions ( 7.5 )].