Meftal Spas is a pain reliever and fever reducer that contains mefenamic acid and dicyclomine. It can cause various side effects such as diarrhoea, constipation, headache, dizziness, and stomach ulcers. Meftal Spas Tablet is a prescription medication used to relieve menstrual pain & abdominal pain. Learn about its uses, benefits, side effects, and warnings! In addition to DRESS syndrome, Meftal-Spas has been associated with other side effects such as abdominal pain, indigestion, dry mouth, blurred vision, increased blood pressure, swelling, skin rash, and gastrointestinal issues like stomach ulcers and bleeding. Prolonged use of the drug may also pose risks to fertility in women, kidney problems and cardiovascular events, especially in individuals with pre-existing heart conditions. Meftal should not be consumed without a prescription Doctors ... Meftal Spas Tablet is a pain reliever that contains Dicyclomine and Mefenamic acid. It may cause side effects like dizziness, stomach upset, nausea and vomiting. Consult your doctor before using it if you have allergies, ulcers, asthma or other conditions.