Hi, Meftal and Cyclopam are commonly used medications to relieve menstrual cramps and abdominal pain. Both of these medications have potential side effects, some of which are listed below: * Meftal (Mefenamic acid): - Stomach pain - Nausea and vomiting - Diarrhea - Dizziness - Headache - Skin rash - Abnormal bleeding or bruising * Cyclopam (Dicyclomine): - Dry mouth - Dizziness - Blurred vision - Nausea and vomiting - Constipation - Difficulty urinating - Skin rash or itching It is important to note that these are not exhaustive lists, and some people may experience side effects not listed here. It is also important to use these medications as directed by a doctor or pharmacist, as they can interact with other medications or medical conditions. If you are experiencing severe menstrual pain and vomiting, it is recommended to see a doctor for proper evaluation and management. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Priyanka, General & Family Physician