What are some effective acne medications (pills) besides Solydon and Accutane?

I have been on Solydon for four months for mild chest acne, but my acne persists. My acne is mildly cystic (one or two cysts at a time, not very big or excreting cysts) in addition to regular pimples. The area has a bit of surface scarring as well. I have no acne anywhere else, my face is clear. What can I take besides Solydon (excluding acutane, for I don't believe my symptoms warrant that intense of a drug). I have an appointment on Thursday where I can discuss options with my doc.

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