Please choose the correct ending to complete the given sentence: Health: [header] How to choose a medication for attention deficit hyperactivity disorder [title] Choose between stimulants and non-stimulants. [step] Stimulant medication appears to be very effective at treating adhd symptoms; however, some non-stimulant medications are also used to treat adhd. Sometimes, non-stimulant medication will be used after stimulant medications have been ineffective.

Ending1: [title] Observe where your adhd symptoms originate. [step] Try to reflect on when you have been exhibiting symptoms of adhd at the moment or right now. Ending2: Be clear from the outset of use whether you are taking medication or non-stimulant medication. [title] Choose non-stimulant medications for severe or recurring adhd symptoms. Ending3: [substeps] Many people choose generic methylphenidate stimulants as they are effective and cost efficient. Stimulants are the first line treatment for adolescents and children over six with adhd. Ending4: This may be best to start with if you don't currently have an adhd diagnosis. [title] Start with selective serotonin reuptake inhibitors.

Answer format: ending1/ending2/ending3/ending4