Several classes of tablets can be used to treat acne, and they all work in a different way.
Antibiotics are frequently prescribed by GPs and Specialists. Antibiotics work by reducing inflammation as well as reducing the number of bacteria in the acne lesions. Antibiotics take 6-10 weeks to start working and can be safely used for up to 12-18 months. Most specialists will try to limit courses to less than 6 months.
Vitamin A can be prescribed in a capsule, and this is commonly known as Roaccutane or Oratane. Specialists may consider this tablet if your acne is severe, scarring, or if other treatments don't work. Most patients will need a course lasting between 6-12 months.
Female patients may benefit from tablets that control hormones. These tablets such as the pill and anti-hormones can improve hormonal acne.
More on tablets for acne