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Amphetamines carry a risk of misuse and abuse, which can lead to severe, potentially life-threatening heart and blood pressure issues. These medications are addictive in nature.

• Use strictly according to your healthcare provider's instructions.
• Long-term use may lead to dependence and withdrawal symptoms upon discontinuation.
• Always seek guidance from your doctor or pharmacist for additional information.

You might experience mild side effects such as nausea, vomiting, constipation, stomach or abdominal pain, loss of appetite, dry mouth, headache, nervousness, dizziness, trouble sleeping, sweating, weight loss, irritability, and restlessness. These effects are generally not severe, but if they persist or worsen, it is important to consult with a healthcare professional.

This medication could cause an increase in blood pressure, so regular monitoring is recommended. Contact a healthcare provider if your blood pressure readings are high. Be aware of more serious side effects, including blurred vision, rapid or irregular heartbeat, mental or mood changes (such as agitation, aggression, mood swings, depression, hallucinations, or suicidal thoughts), uncontrolled movements, muscle twitching, signs of blood flow issues in the fingers or toes, unusual wounds, sudden outbursts, changes in sexual function, swelling of the ankles or feet, extreme fatigue, rapid weight loss, or prolonged erections in males. Immediate medical attention is advised if these occur.

In rare cases, this medication could lead to very serious side effects. Seek urgent medical help if you experience shortness of breath, fainting, chest pain, seizures, weakness on one side of your body, difficulty speaking, confusion, or sudden vision changes. Additionally, the medication might increase serotonin levels, potentially leading to a rare but serious condition known as serotonin syndrome. Symptoms include a rapid heartbeat, hallucinations, loss of coordination, severe dizziness, nausea, diarrhea, muscle twitching, fever, and unusual agitation.

Although extremely rare, a severe allergic reaction is possible. Urgent medical help is necessary if you observe symptoms like rash, itching, swelling (especially of the face, tongue, or throat), severe dizziness, or difficulty breathing. This summary does not cover all potential side effects; if other unusual symptoms occur, reach out to a healthcare provider.

Avoid using MAO inhibitors (such as isocarboxazid, linezolid, and phenelzine) while taking this medication, as it may lead to a dangerous and potentially fatal reaction. It is also recommended not to use most MAO inhibitors for two weeks before starting this medication. Consult your doctor about when to begin or discontinue this treatment.

Some products might contain ingredients that can elevate your heart rate or blood pressure. Please inform your pharmacist about all the products you are using, especially those for coughs, colds, or weight loss, and ask for guidance on their safe use.

The risk of developing serotonin syndrome or toxicity increases if you are taking other medications that raise serotonin levels. This includes certain antidepressants like SSRIs (such as fluoxetine or paroxetine), SNRIs (such as duloxetine or venlafaxine), St. John's wort, and recreational drugs like MDMA. The risk is heightened when starting or increasing the dose of these medications.

Lisdexamfetamine is similar to amphetamine and dextroamphetamine, so avoid using these medications concurrently with lisdexamfetamine.

This medication may also affect certain laboratory tests, such as blood and urine steroid levels, possibly causing inaccurate results. Ensure all medical professionals and laboratory staff are aware that you are taking this medication.