Kaletra Oral Solution and Tibsovo

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.

Using ivosidenib together with ritonavir should be avoided if possible. Combining these medications may significantly increase the blood levels of ivosidenib. This may increase the risk of an irregular heart rhythm that may be serious and potentially life-threatening. You may be more susceptible if you have a heart condition called congenital long QT syndrome, other cardiac diseases, conduction abnormalities, or electrolyte disturbances (for example, magnesium or potassium loss due to severe or prolonged diarrhea or vomiting). In addition, blood levels of ritonavir may be reduced during treatment with ivosidenib. This may make the medication less effective in treating your condition. 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. You should seek immediate medical attention if you develop sudden dizziness, lightheadedness, fainting, shortness of breath, or heart palpitations during treatment with ivosidenib. 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.

GENERALLY AVOID: Coadministration with potent inhibitors of CYP450 3A4 may significantly increase the plasma concentrations of ivosidenib, which is primarily metabolized by the isoenzyme. When a single 250 mg dose of ivosidenib was administered with the potent CYP450 3A4 inhibitor itraconazole (200 mg once daily for 18 days), ivosidenib systemic exposure (AUC) increased to 269% of control, with no change in peak plasma concentration (Cmax). Increased exposure to ivosidenib may increase the risk of QT interval prolongation, which has been associated with ventricular arrhythmias including torsade de pointes and sudden death.

GENERALLY AVOID: Coadministration with ivosidenib may decrease the plasma concentrations of drugs that are primarily metabolized by CYP450 3A4, including many of the known potent inhibitors of the isoenzyme such as clarithromycin, conivaptan, delavirdine, idelalisib, itraconazole, ketoconazole, nefazodone, posaconazole, telithromycin, and all protease inhibitors. Ivosidenib is an inducer of CYP450 3A4 and induces its own metabolism following multiple dosing.

MANAGEMENT: Concomitant use of ivosidenib with potent CYP450 3A4 inhibitors, particularly those that are also substrates of CYP450 3A4, should generally be avoided. If coadministration is required, a reduction of the ivosidenib dosage to 250 mg once daily is recommended. Following discontinuation of the potent inhibitor for at least 5 half-lives, ivosidenib therapy should be returned to the recommended dosage of 500 mg once daily. Monitoring of electrocardiograms and electrolytes should be conducted regularly.

Kaletra Oral Solution

Generic Name: lopinavir / ritonavir

Brand name: Kaletra

Synonyms: Kaletra

What is Kaletra Oral Solution?

Tibsovo

Generic Name: ivosidenib

Brand name: Tibsovo

Synonyms: n.a.

What is Tibsovo?