Did you suffer from acne? What doses did you take and do you think monocycline was more effective than the penicillin?yes it definitely reduced chronic gas that I had for years - I took 2 weeks of penicillin and then a couple months later I took 2 weeks of minocycline - I assume I had some bacteria overgrowth because after the antibiotics I no longer had gas (I used to wake up every morning, for years, with seemingly endless amounts of gas)