Contraceptives Table 9. No documented clinical effect or significance has been established for penicillins, tetracyclines, cephalosporins and other commonly used antibiotics. Hormonal methods may be used and no backup method is routinely necessary with these antibiotics. Possible increased antidepressant effect Use with caution.
Low doses are probably safe.
Possible increased beta-blocker effect Monitor cardiovascular status. Increased theophylline effect Monitor for symptoms of theophylline overdose. Monitor blood glucose as for any diabetic patient. Possible increased or decreased tranquilizer effects including psychomotor impairment Use with caution. Commonly prescribed dosages are unlikely to result in significant effects.