What are Vyvanse’s side effects?

Like most drugs, Vyvanse may cause mild or serious side effects. The lists below describe some of the more common side effects that Vyvanse may cause. These lists don’t include all possible side effects.

Keep in mind that side effects of a drug can depend on:

• your age
• other health conditions you have
• other medications you take
• the condition you’re using the drug to treat

Your doctor or pharmacist can tell you more about the potential side effects of Vyvanse. They can also suggest ways to help reduce side effects.

Mild side effects

Here’s a short list of some of the mild side effects that Vyvanse can cause. To learn about other mild side effects, talk with your doctor or pharmacist, or read Vyvanse’s medication guide.

Mild side effects of Vyvanse that have been reported include:

• anxiety
• belly pain
• constipation
• dizziness
• dry mouth
• feeling jittery (tense, nervous, or unable to relax)
• headache
• insomnia (trouble falling asleep or staying asleep)
• loss of appetite or decreased appetite
• nausea, diarrhea, or vomiting
• “Vyvanse crash” (feeling irritable or tired as the drug’s effects wear off in your body)
• weight loss*
• effects on personality*

Mild side effects of many drugs may go away within a few days or a couple of weeks. But if they become bothersome, talk with your doctor or pharmacist.

Serious side effects

Serious side effects from Vyvanse can occur, but they aren’t common. If you have serious side effects from Vyvanse, call your doctor right away. But if you think you’re having a medical emergency, call 911 or your local emergency number.

Serious side effects of Vyvanse that have been reported include:

• heart problems, some of which may be rare, such as:
  • high blood pressure
  • increased heart rate
  • heart attack
  • stroke
  • sudden cardiac death
• mental health conditions, such as mania (periods of extreme excitement and energy) or psychosis
• problems with blood flow to your fingers and toes, such as Raynaud’s phenomenon
• serotonin syndrome (a condition caused by high levels of a chemical called serotonin in your body)
• slowed growth in children taking the drug
• boxed warning: risk of dependence and misuse,* which may lead to suicidal thoughts or behaviors
• allergic reaction*

Interactions , Buy vyvanse online

Taking medications, vaccines, foods, and other things with a certain drug can affect how the drug works. These effects are called interactions.

Before taking Vyvanse, be sure to tell your doctor about all medications you take, including prescription and over-the-counter types. Also describe any vitamins, herbs, or supplements you use. Your doctor or pharmacist can tell you about any interactions these items may cause with Vyvanse.

Interactions with drugs or supplements

Vyvanse can interact with several types of drugs. These drugs include:

• monoamine oxidase inhibitor (MAOI) drugs,* such as:
  • MAOI antidepressants
  • the blood disorder drug methylene blue (Provayblue)
  • the antibiotic linezolid (Zyvox)
• drugs that block the activity of an enzyme (type of protein) called CYP2D6, such as:
  • paroxetine (Paxil)
  • fluoxetine (Prozac)
• drugs that increase your serotonin level, such as:
  • sertraline (Zoloft)
  • escitalopram (Lexapro)
  • the herbal supplement St. John’s wort
• drugs that increase or decrease your urine pH level, such as:
  • the altitude sickness drug acetazolamide
  • medications that contain sodium bicarbonate (baking soda)
• the antidepressants:
  • bupropion (Wellbutrin XL, Aplezin)
  • tricyclic antidepressants

This list does not contain all types of drugs that may interact with Vyvanse. Your doctor or pharmacist can tell you more about these interactions and any others that may occur with use of Vyvanse.

* Because of this interaction, you should not take Vyvanse with an MAOI. For more information, see the “Other warnings” section below.

Other interactions

Vyvanse can interact with caffeine.

Caffeine is a natural stimulant. It can be found in food such as chocolate. It can be found in drinks such as coffee, tea, and soda. Caffeine is also included in certain over-the-counter cold medications and weight loss supplements.

Vyvanse is also a stimulant. So taking it with caffeine can raise your risk for stimulant-related side effects from Vyvanse. Examples of these side effects include:

• anxiety
• feeling jittery (tense, nervous, or unable to relax)
• increased heart rate
• insomnia (trouble falling asleep or staying asleep)

It may be best to avoid large amounts of caffeine while you’re taking Vyvanse. Your doctor can recommend the amount of caffeine that’s safe for you to have while taking this drug.

Enhancing performance, Order vyvanse online

Cognitive performance

In 2015, a systematic review and a meta-analysis of high quality clinical trials found that, when used at low (therapeutic) doses, amphetamine produces modest yet unambiguous improvements in cognition, including working memory, long-term episodic memory, inhibitory control, and some aspects of attention, in normal healthy adults;these cognition-enhancing effects of amphetamine are known to be partially mediated through the indirect activation of both dopamine receptor D₁ and adrenoceptor α in the prefrontal cortex A systematic review from 2014 found that low doses of amphetamine also improve memory consolidation, in turn leading to improved recall of information. Therapeutic doses of amphetamine also enhance cortical network efficiency, an effect which mediates improvements in working memory in all individuals. Amphetamine and other ADHD stimulants also improve task saliency (motivation to perform a task) and increase arousal (wakefulness), in turn promoting goal-directed behavior. Stimulants such as amphetamine can improve performance on difficult and boring tasks and are used by some students as a study and test-taking aid.Based upon studies of self-reported illicit stimulant use, 5–35% of college students use diverted ADHD stimulants, which are primarily used for enhancement of academic performance rather than as recreational drugs.However, high amphetamine doses that are above the therapeutic range can interfere with working memory and other aspects of cognitive control

Physical performance

Amphetamine is used by some athletes for its psychological and athletic performance-enhancing effects, such as increased endurance and alertness; however, non-medical amphetamine use is prohibited at sporting events that are regulated by collegiate, national, and international anti-doping agencies.In healthy people at oral therapeutic doses, amphetamine has been shown to increase muscle strength, acceleration, athletic performance in anaerobic conditions, and endurance (i.e., it delays the onset of fatigue), while improving reaction time.Amphetamine improves endurance and reaction time primarily through reuptake inhibition and release of dopamine in the central nervous system. Amphetamine and other dopaminergic drugs also increase power output at fixed levels of perceived exertion by overriding a “safety switch”, allowing the core temperature limit to increase in order to access a reserve capacity that is normally off-limits. At therapeutic doses, the adverse effects of amphetamine do not impede athletic performance; however, at much higher doses, amphetamine can induce effects that severely impair performance, such as rapid muscle breakdown and elevated body temperature.

Contraindications 

Pharmaceutical lisdexamfetamine dimesylate is contraindicated in patients with hypersensitivity to amphetamine products or any of the formulation’s inactive ingredients.^[18] It is also contraindicated in patients who have used a monoamine oxidase inhibitor (MAOI) within the last 14 days. Amphetamine products are contraindicated by the United States Food and Drug Administration (USFDA) in people with a history of drug abuse, heart disease, or severe agitation or anxiety, or in those currently experiencing arteriosclerosis, glaucoma, hyperthyroidism, or severe hypertension.^[58] The USFDA advises anyone with bipolar disorder, depression, elevated blood pressure, liver or kidney problems, mania, psychosis, Raynaud’s phenomenon, seizures, thyroid problems, tics, or Tourette syndrome to monitor their symptoms while taking amphetamine. Amphetamine is classified in US pregnancy category C. This means that detriments to the fetus have been observed in animal studies and adequate human studies have not been conducted; amphetamine may still be prescribed to pregnant women if the potential benefits outweigh the risks. Amphetamine has also been shown to pass into breast milk, so the USFDA advises mothers to avoid breastfeeding when using it. Due to the potential for stunted growth, the USFDA advises monitoring the height and weight of children and adolescents prescribed amphetamines. Prescribing information approved by the Australian Therapeutic Goods Administration further contraindicates anorexia.