Drug Interactions between sparsentan and suvorexant

If you are taking sparsentan you should avoid potassium-containing salt substitutes or over-the-counter potassium supplements without first talking to your doctor. This can cause high levels of potassium in your blood. High levels of potassium can cause weakness, irregular heartbeat, confusion, tingling of the extremities, or feelings of heaviness in the legs. Call your doctor at once if you have any of these symptoms.

Consumption of grapefruit, grapefruit juice, and supplements that contain grapefruit should be avoided during treatment with sparsentan as they may increase the blood levels of sparsentan. This may increase the risk of side effects such as hepatotoxicity, acute kidney injury, hyperkalemia, edema, and hypotension.

Swallow sparsentan whole with water before your morning or evening meal. Take your dose with the same meal each day. Talk to your doctor if you have any questions or concerns. 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.

Food can delay the absorption of suvorexant, which may increase the amount of time it takes for the medication to work. For faster sleep onset, do not take suvorexant with or soon after a meal. Suvorexant should also not be taken with grapefruit juice, as it may significantly increase the levels of medication in the blood. This can increase the risk of side effects including excessive drowsiness, motor impairment, amnesia, anxiety, hallucinations, and breathing difficulties (especially if you have a respiratory disorder such as asthma or obstructive sleep apnea). Talk to your doctor if you have any questions or concerns. You should avoid the use of alcohol while being treated with suvorexant. Avoid driving or operating hazardous machinery until you know how the medication affects you, and do not exceed the dosage or frequency of use prescribed by your doctor. 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.