Drug Interactions between Cyanide Antidote Kit and vosoritide

Using sodium nitrite together with amyl nitrite may increase the risk of methemoglobinemia, a condition that can lead to oxygen deprivation in tissues and vital organs due to reduced oxygen-carrying capacity of the blood. Individuals may be more susceptible to developing methemoglobinemia during treatment with these medications if they are very young (especially neonates and infants) or have anemia, diseases of the heart or lungs, blood circulation disorders, shock, sepsis, and certain genetic predispositions such as NADH cytochrome-b5 reductase deficiency, glucose-6-phosphate dehydrogenase deficiency, and hemoglobin M. Close medical supervision is necessary when medications that can cause methemoglobinemia are used together. Signs and symptoms of methemoglobinemia may be delayed by several hours after treatment with sodium nitrite. Patients (or their caregivers) should seek immediate medical attention if they develop a gray discoloration of the skin, mouth, or nail bed; nausea; headache; dizziness; lightheadedness; fatigue; shortness of breath; rapid or shallow breathing; a rapid heartbeat; anxiety; and confusion. 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.

Vosoritide may cause transitory decreases in blood pressure and may have additive effects when used together with amyl nitrite. You may be more likely to experience side effects such as dizziness, weakness, headache, nausea, flushing or fainting. You may need frequent monitoring of your blood pressure to safely use both medications. To reduce the risk of low blood pressure and its associated symptoms, you should have adequate food intake before vosoritide administration and should drink approximately 8 to 10 ounces of liquids within the hour prior to vosoritide injection. Avoid driving or operating hazardous machinery until you know how these medications affect 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.