Erythromycin is one of the best acne antibiotics (if not the best) today; it’s very effective and has many advantages over Accutane and Tetracycline and any over the counter treatments such as acne cream. Dosage usually prescribed is 250 to 500 mg twice a day depending on the severity of acne. One of the main advantages of Erythromycin over other antibiotics is that it can be given to pregnant women and you can take after having food (no empty stomach restrictions). Before taking Erythromicyn don’t forget to talk about it with your doctor and check you healt; although Erythromicyn is very effective you can’t take it if you have, say, diabetes or liver disease. When you take Erithromycin it stops the growing of that bacteria that causes acne very fast and that’s why it’s so effective. It takes about a month or so of taking this acne medication to see the results; and the results are usually very impressive.