Common Nausea, Diarrhoea, Allergic reaction.

Expert advice for Proact D Capsule
Your doctor has prescribed Proact d to cure your infection and improve symptoms. Do not skip any doses and finish the full course of treatment even if you feel better. Discontinue Proact d and inform your doctor immediately if you get a rash, itchy skin, swelling of face and mouth, or have difficulty in breathing. Diarrhea may occur as a side effect but should stop when your course is complete. Inform your doctor if it doesn't stop or if you find blood in your stools. Notify your doctor if you feel pain in your tendons, numbness, or tingling sensations. Inform your doctor if you are pregnant or planning to conceive or breastfeeding.