Low dose Doxycycline 20mg per day: Periostat: Is extremely safe. Rare side effect which I have never seen with doxycycline but has been reported at higher levels.
Low dose Doxycycline 20mg/d helps chronic dry eye (an inflammatory disease often) by inhibiting inflammatory factors (ie MMPs) with a mechanism which is independent from their antibiotic effect. However at high doses, there have been rare case reports of pseudotumor cerebri (intracranial hypertension). How doxycycline causes intracranial hypertension is not known; however, case reports abound […]