Drugs that improve memory and attention are mainly divided into prescription drugs and over-the-counter supplements. Before considering any medication, it is strongly recommended that you consult a professional healthcare provider to ensure that it is suitable for your health condition and understand the possible side effects. Here are some common drugs and supplements: ### Prescription drugs 1. **Methylphenidate** - **Trade name**: Ritalin, Concerta - **Use**: Mainly used to treat attention deficit hyperactivity disorder (ADHD), which can improve attention and concentration. - **Usage**: Take orally according to the doctor's prescription, usually 1-2 times a day, and the dosage varies from person to person. 2. **Amphetamines** - **Trade name**: Adderall, Vyvanse - **Use**: Used to treat ADHD and narcolepsy, it can enhance attention and alertness. - **Usage**: Take orally as directed by the doctor, usually once a day or in divided doses. 3. **Modafinil** - **Trade name**: Provigil - **Purpose**: Used to treat narcolepsy, obstructive sleep apnea and shift work sleep disorder, and is sometimes used to improve cognitive function. - **Usage**: Usually taken orally once a day in the morning, the specific dosage should be followed according to the doctor's advice. 4. **Donepezil** - **Trade name**: Aricept - **Purpose**: Mainly used to treat Alzheimer's disease, helping to improve memory and cognitive function. - **Usage**: Usually taken once a day, before or after meals. ### Over-the-counter supplements 1. **Caffeine** - **Form**: Coffee, tea, energy drinks or caffeine supplements - **Purpose**: Short-term improvement of attention and alertness. - **Usage**: Moderate intake, generally recommended not to exceed 400 mg per day. 2. **Omega-3 Fatty Acids** - **Form**: Fish oil supplement - **Use**: Helps with brain health and supports cognitive function. - **Directions**: Take 1-2 times daily, as directed by the product label or medical advice. 3. **Ginseng** - **Form**: Herbal supplement - **Use**: Traditionally used to improve energy and cognitive function. - **Directions**: Take 1-2 times daily, as directed by the product label or medical advice. 4. **Ginkgo Biloba** - **Use**: Used to improve memory and blood circulation. - **Directions**: Take 1-2 times daily, as directed by the product label. ### Precautions - **Side effects**: All medications and supplements may have side effects. For example, methylphenidate and amphetamines may cause insomnia, decreased appetite, and increased heart rate; excessive caffeine may cause anxiety and palpitations. - **Interactions**: There may be interactions between medications and other medications or supplements, affecting their effectiveness or increasing the risk of side effects. - **Risk of dependence and abuse**: Some prescription drugs (such as amphetamines) are addictive and should be used strictly according to doctor's orders. ### Non-drug methods In addition to medication, the following methods can also help improve memory and concentration: - **Sufficient sleep**: Ensure 7-9 hours of high-quality sleep every day. - **Healthy diet**: Eat a balanced diet that includes abundant vegetables, fruits and whole grains. - **Regular exercise**: Helps improve brain function and overall health. - **Mental training**: Such as meditation, mindfulness exercises and cognitive training games. ### Conclusion Although there are many drugs and supplements that claim to improve memory and concentration, the **safest and most effective way is to consult a professional healthcare provider** for personalized advice and treatment plans.