Prestalia and Tenex

In the database of official manuals used in the service creation an interaction registered by statistical results of studies was found, which can either lead to negative consequences for the patient health or strengthen a mutual positive effect. A doctor should be consulted to address the issue of joint drug administration.

AmLODIPine may increase the blood levels of guanFACINE in some patients. This may increase side effects such as low blood pressure, dizziness, lightheadedness, fainting, drowsiness, headache, palpitations, and heart rate changes. Talk to your doctor if you have any questions or concerns. Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring to safely use both medications. Avoid driving or operating hazardous machinery until you know how the medication affects you, and use caution when getting up from a sitting or lying position. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

MONITOR: Coadministration with inhibitors of CYP450 3A4 may increase the plasma concentrations of guanfacine, which is primarily metabolized by the isoenzyme. Ketoconazole, a potent CYP450 3A4 inhibitor, has been reported to increase guanfacine peak plasma concentration (Cmax) and systemic exposure (AUC) by approximately 2- and 3-fold, respectively. A computer simulation suggests that fluconazole, a moderate CYP450 3A4 inhibitor, would increase guanfacine Cmax and AUC by about 1.5- and 2-fold, respectively.

MANAGEMENT: Caution is advised when guanfacine is used with CYP450 3A4 inhibitors. Patients should be monitored for increased adverse effects such as hypotension, bradycardia and sedation , and the guanfacine dosage adjusted as necessary.

Prestalia

Generic Name: amlodipine / perindopril

Brand name: Prestalia

Synonyms: n.a.

What is Prestalia?

Tenex

Generic Name: guanfacine

Brand name: Intuniv, Tenex

Synonyms: n.a.

What is Tenex?