Common Side Effects of Clindamycin. Tell your doctor or seek immediate medical help if any of the following common side effects of clindamycin do not go away or become severe: Can taking clindamycin change my menstrual cycle - Answered by a verified OB GYN Doctor We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Detailed drug Information for clindamycin Vaginal. Includes common brand names, drug descriptions, warnings, side effects and dosing information. Includes common brand names, drug descriptions, warnings, side effects and dosing information. Did you know that antibiotics could affect the menstrual cycle? Indeed, most of them can have an effect on menstrual periods, with some reporting delays. Most antibiotics come with a hefty list of possible side effects, but menstrual irregularities are never on there. If there's no scientific link between most antibiotics and the menstrual cycle, why are so many women convinced that antibiotics make their periods go out of whack? Doctors give trusted answers on uses, effects, side-effects, and cautions: Dr. Klein on can clindamycin delay my period: Antibiotics should not interact with your period one way or the other. One concern with mixing antibiotics and birth control pills is that the antibiotics can change one's gut flora (bacteria) enough to effect the way the pill is absorbed and that can affect the period. The. Can Clindamycin cause Irregular Periods? Complete analysis from patient reviews and trusted online health resources, including first-hand experiences. Complete analysis from patient reviews and trusted online health resources, including first-hand experiences. Here is some info about side effects you might want to read.but it doesn't say anything about delaying your menstrual cycle. What are clindamycin capsules? Consumer information about the oral medication clindamycin (Cleocin) side effects, drug interactions, recommended dosages, and storage information. Read more about the oral prescription drug clindamycin (Cleocin). Common Questions and Answers about Clindamycin and menstrual cycle benzaclin Treatment is by metronidazole((Flagyl, MetroGel) and clindamycin (Cleocin).They are available as pills or vaginal gels or creams.