Alcohol: Mefmyd Oral Suspension should be used with caution in patients with kidney disease. Dose adjustment of Mefmyd Oral Suspension may be needed. Please consult your doctor.Use of Mefmyd Oral Suspension is not recommended in children with severe kidney disease. Pregnancy: Mefmyd Oral Suspension is safe to use in patients with liver disease. No dose adjustment of Mefmyd Oral Suspension is recommended.Regular monitoring of the liver by getting liver function tests (LFT) is recommended if your child is taking Mefmyd Oral Suspension for a long time.