Before you start treatment with Kerendia, it's important to discuss the following with your doctor:, All the medications you take. These include prescription and over-the-counter medications, as well as vitamins and herbal supplements., Your allergies., Your health conditions, including liver problems., Your pregnancy status., Your breastfeeding status. Breastfeeding should be avoided during Kerendia treatment and for one day after treatment., Kerendia can cause elevated potassium levels in the blood. Seek emergency care right away if you experience muscle weakness, rapid heartbeats, trouble breathing, chest pain, nausea, or vomiting., Do not consume grapefruit or grapefruit juice during treatment with Kerendia. All the medications you take. These include prescription and over-the-counter medications, as well as vitamins and herbal supplements., Your allergies., Your health conditions, including liver problems., Your pregnancy status., Your breastfeeding status. Breastfeeding should be avoided during Kerendia treatment and for one day after treatment.