As per your prescription (1 0 1) it means 1 capsule twice daily(one in the Morning one at bedtime) normally Its taken after food....
Next Steps
You may require additional medicines along with VLS 3 to cope with the Symptoms if it has a long standing History....
Health Tips
Avoid carbonated drinks
Eat slowly, chew well
Avoid gas-producing foods: beans, cabbage, lentils, onions, dairy (if intolerant) and milk as well if you are lactose intolerant
Consider low-FODMAP diet if symptoms persist