https://www.iampsychiatry.com/adult-adhd-medication ADHD OTC Medication The majority of children and adults who are taking ADHD medication will experience adverse effects. These can include heartbeat fluctuations loss of appetite, and upset stomachs. These adverse effects can be reduced with a healthy diet and enough sleep. The effects of stimulants boost the signaling between brain cells, which helps kids control their impulses and focus. They can also cause tics or increase blood pressure. These drugs are controlled substances that can be crushed or inhaled to produce illegal substances. Methylphenidate Methylphenidate is one of the main medicines used to treat attention-deficit/hyperactivity disorder (ADHD). It is part of the class of drugs known as stimulants. It boosts brain activity, especially in areas that regulate attention and behavior. It can also aid in improving memory. Methylphenidate is available only with a doctor's prescription. It is available in standard (immediate-release) caps and tablets and also slow-release tablets and caps. When taking methylphenidate it is important to take the medication exactly as prescribed by your doctor. Methlphenidate can cause adverse effects, such as loss of appetite and dry mouth. subside as your child gets used to the medication. If you notice that your child is losing weight, talk to your doctor. It's important to tell your doctor if you are taking other medications, specifically monoamine oxidase inhibitors like isocarboxazid (Marplan) and linezolid (Zyvox) and the phenelzine (Nardil), rasagiline (Azilect), or tranylcypromine (Parnate). Methlphenidate could interact with these medications. It's also important to inform your doctor if you're pregnant or nursing. It's not known if this medication gets into breast milk, but it might harm your baby. Methlphenidate belongs to the schedule X drug, which means it can only be purchased with a doctor's prescription. It's illegal to possess or distribute 2 grams of the dr