Camphor and phenol are mild topical (for the skin) pain relievers. The combination of allantoin, camphor, and phenol is used to treat pain, itching, or severe lip dryness caused by chapped lips or cold sores (fever blisters). This medication will not cure herpes simplex, a virus that causes cold sores.
Concerta is a new medication for ADHD. It is a central nervous system stimulant and contains methylphenidate, the same medication ingredient found in Ritalin. It comes in 18mg, 36mg and 54mg tablets and is intended to be taken once a day.
Learn more: ADHD and the role of dopamine Â». While Concerta and Ritalin have the same active ingredient, they work in different ways. Concerta is a long-acting drug: It increases dopamine steadily. This means that you only need to take it once per day for all-day symptom relief. According to the Cleveland Clinic, Concerta works for 10 to 12 hours.