Thanks. To make swallowing easier, you may open the lisdexamfetamine capsule and sprinkle the medicine into a glass of water or orange juice, or mix it with yogurt. Vyvanse is marketed as once-a-day dosing as it provides a slow release of dextroamphetamine into the body. It’s recommended to ask your doctor or pharmacist about specific interactions with Vyvanse. Some examples of such medicines include aspirin, penicillin, and furosemide. Learn more here. Similar to many drug interactions, any other medications that increase the acidity of one’s blood will make Vyvanse less strong and less intense. Also the dose seems to be inconsistent some days. Or, if I have heartburn. Moderate catecholamine levels engage D1 (dopamine receptor subtype 1) and alpha2A receptors which improves attention. They have similar actions and side effects, but there are several differences. Does vyvanse really work when mixed with water? My way of doing this dissolving it in water and drinking 30mg worth measured out. Depending on the results, you may need to talk to the doctor that is prescribing the Vyvanse to see if there is something else that can help your ADHD. Vyvanse is available as capsules, and chewable tablets, and in seven strengths; 10 mg, 20 mg, 30 mg, 40 mg, 50 mg, 60 mg, and 70 mg. I would appreciate any feedback. Vyvanse: One capsule in the morning. Will mixing it with water decrease the effects? Try taking your blood pressure a few times on the Vyvanse and off the Vyvanse, at similar times of day and under similar circumstances. So I am prescribed 40mg daily but only take 30mg on most days. This way it doesn't matter if I just ate something. I was just wondering if it has the same effects if I mix the vyvanse with water compared to me just swallowing the capsule whole. Personally, I always take my Adderall sublingually. Vyvanse is the quintessential example of a "pro-drug"—an inactive substance that becomes active only after it is absorbed and then metabolized in the body to give the parent drug (4,5). Adderall: First dose on awakening; additional doses (1 or 2) at intervals of 4 to 6 hours. My concern is that there is always white powder left in the bottom of the bottle even if I let it dissolve over night. Dissolving Vyvanse in water. After the medicine has dissolved, drink or eat the mixture right away. The prefrontal cortex (pfc) is very sensitive to catecholamines like dopamine and norepinephrine. While using this medicine, your doctor will need to check your progress at regular visits. Vyvanse can’t be snorted or injected, so some people who use it recreationally take high doses of the drug. Vyvanse and Adderall are two drugs that treat ADHD. This increases the risk of prescription drug addiction. Breaking it into quarters, then letting it dissolve for ~5 minutes gets me all the Adderall I need. One person with ADHD may benefit from one type of amphetamine, and another person may feel unpleasant side effects from the same medication. Vyvanse's calming effect in ADHD patients can make them feel tired. Answer Save. Physiochemical and biological characteristics of LDX (e.g., high water solubility, lack of effect on absorption or conversion by changes in gastric environment and pH, and gradual conversion to active d-amphetamine) may contribute to the consistent delivery of d-amphetamine and low variability among participants [Vyvanse (package insert), 2011]. The conversion rate between lisdexamfetamine dimesylate (Vyvanse) to dextroamphetamine base is 29.5%. Even if you had high blood pressure before starting on the Vyvanse, the Vyvanse can make it worse. Do not save for later use. ADHD medications affect people differently.