lisdexamfetamine vs venlafaxine
Side-by-side comparison of lisdexamfetamine and venlafaxine. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
minor Known Drug Interaction
7.2 Drugs Having No Clinically Important Interactions with Lisdexamfetamine Dimesylate Capsules From a pharmacokinetic perspective, no dose adjustment of lisdexamfetamine dimesylate capsules is necessary when lisdexamfetamine dimesylate capsules is co-administered with guanfacine, venlafaxine, or omeprazole. In addition, no dose adjustment of guanfacine or venlafaxine is needed when lisdexamfetamine dimesylate capsules is co-administered [see Clinical Pharmacology (12.3) ] . From a pharmacokinetic perspective, no dose adjustment for drugs that are substrates of CYP1A2 (e.g., theophylline,...
Recommendation: No dose changes are needed when taking these two medications together.
Vyvanse
Effexor, Effexor XR
Lisdexamfetamine (Vyvanse) is a stimulant medicine. It can help improve focus and reduce impulsive behavior.
Venlafaxine is a medication used to treat depression. It helps to improve your mood by affecting certain chemicals in the brain.
This medicine treats Attention Deficit Hyperactivity Disorder (ADHD) in adults and kids 6 years and older. It also treats moderate to severe binge eating disorder (BED) in adults. This medicine is not for weight loss.
Venlafaxine is used to treat major depressive disorder. This condition can cause a persistent feeling of sadness or loss of interest in daily activities. It may also help maintain improvement in patients with recurrent depression.
Lisdexamfetamine affects chemicals in your brain. These chemicals help control hyperactivity and impulses. It can also help reduce binge eating.
Venlafaxine is a serotonin-norepinephrine reuptake inhibitor (SNRI). It works by increasing the levels of serotonin and norepinephrine in the brain. These chemicals help regulate mood and can be low in people with depression.
- • Anorexia
- • Anxiety
- • Decreased appetite
- • Weight loss
- • Diarrhea
- • Feeling weak or tired
- • Sweating a lot
- • Feeling sick to your stomach
- • Constipation
- • Loss of appetite
- Taking too much medicine on purpose 1,068
- Purposely hurting yourself 1,009
- Problem getting the medicine 487
- Feeling tired 402
- Head pain 377
- Feeling sick to your stomach 4,298
- Harmful effects from different substances 4,264
- Feeling tired 4,199
- Head pain 3,740
- Death by suicide 3,170
This medicine has a high risk for abuse, misuse, and addiction. Misusing it can lead to overdose and death. Your doctor will check your risk before and during treatment. Store this medicine safely and do not share it with anyone.
Antidepressants may increase the risk of suicidal thoughts and behaviors in children, adolescents, and young adults. Your doctor will monitor you closely for worsening depression, suicidal thoughts, or unusual changes in behavior. Venlafaxine is not approved for use in children.
This medicine may harm your unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. Breastfeeding is not recommended while taking this medicine.
If you are pregnant or breastfeeding, talk to your doctor before taking venlafaxine. Newborns exposed to SNRIs like venlafaxine in the third trimester may have complications requiring hospitalization. Your doctor will carefully consider the risks and benefits of treatment during pregnancy.
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How to Read This lisdexamfetamine vs venlafaxine Comparison
lisdexamfetamine is classified in the CNS Stimulant drug class, while venlafaxine sits within the Serotonin-Norepinephrine Reuptake Inhibitor (SNRI) class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, lisdexamfetamine has 3,343 submissions while venlafaxine has 19,671. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to lisdexamfetamine does not change how the body breaks down venlafaxine through liver enzymes.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between lisdexamfetamine and venlafaxine - always consult your physician or pharmacist first.
Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.