Critical Interactions to Avoid
When starting Vyvanse, a central nervous system (CNS) stimulant used to treat ADHD and binge eating disorder, understanding potential drug interactions is paramount for patient safety. Some combinations can lead to severe or life-threatening conditions, while others can alter the medication's effectiveness.
Monoamine Oxidase Inhibitors (MAOIs)
The most critical interaction is with monoamine oxidase inhibitors (MAOIs). Combining Vyvanse with or within 14 days of taking an MAOI can cause a hypertensive crisis, a life-threatening medical emergency. Examples of MAOIs include isocarboxazid, phenelzine, tranylcypromine, and selegiline, as well as certain other drugs like linezolid and methylene blue.
Serotonergic Drugs and the Risk of Serotonin Syndrome
Combining Vyvanse with medications that increase serotonin levels can lead to serotonin syndrome, a potentially fatal condition. This includes many antidepressants (SSRIs, SNRIs, TCAs), opioid pain relievers like tramadol, migraine medications (triptans), lithium, and the herbal supplement St. John's wort.
Other Significant Interactions
Combining Vyvanse with other CNS stimulants can dangerously increase heart rate and blood pressure. Vyvanse may also interact with blood pressure medications and requires careful monitoring. Additionally, substances that change urine pH can impact Vyvanse levels; for example, high-dose Vitamin C can reduce effectiveness, while urinary alkalinizers can increase levels and potential side effects.
Consult your doctor for a detailed list of potential interactions, including a comparison of key interactions with different drug classes or substances {Link: SingleCare https://www.singlecare.com/blog/vyvanse-interactions/}.
Substances to Avoid with Vyvanse
Avoid alcohol and excessive caffeine while taking Vyvanse. Alcohol can mask intoxication and increase cardiovascular risk, while caffeine can worsen stimulant side effects like anxiety and increased heart rate. The interaction of Vyvanse with marijuana or CBD is less clear but should be discussed with a doctor.
Conclusion
To ensure safety and effectiveness while taking Vyvanse, it is essential to avoid specific medications and substances. Critically, avoid MAOIs due to the risk of hypertensive crisis and serotonergic drugs due to the risk of serotonin syndrome. Other stimulants and substances affecting urinary pH should also be avoided or used with caution. Always have a complete discussion with your healthcare provider and pharmacist about all medications, supplements, and substances you use to prevent dangerous interactions. Do not change doses or combine medications without medical guidance.
For more information on drug interactions, consult authoritative sources like Drugs.com, which provides a comprehensive interaction checker tool.