You should not take this medicine if you are allergic to Parocline or to other tetracycline antibiotics such as demeclocycline Declomycin, doxycycline Adoxa, Doryx, Oracea, Vibramycin, or tetracycline Brodspec, Panmycin, Sumycin, Tetracap.
doxycycline 100mg twice a day Kappel C, Piticaru J, Jones G, Goucher G, Cheon P, Fischer M, et al.