YOu can take VDM kit as it clears any underlying infection before IUI and leads to higher chance of sucessful pregnancy . SIDe effect are uncommon. I am giving a list of side effects it can cause but dont panic its very rare Abdominal pain, Abnormal liver function tests, Agranulocytosis, Alopecia, Anaphylaxis, Angioneurotic edema, Arrhythmias, Cholestatic jaundice, Confusion, Constipation, Convulsions, Darkening of urine, Deafness, Depression, Diarrhoea, Dizziness, Drowsiness, Dyspepsia, Erythema multiforme, Flatulence, Furred tongue, G.I.Upset, Glossitis, Headache, Hepatitis, Hepatotoxicity, Hypersensitivity, Hypokalaemia, Insomnia, Leukopenia, Liver damage, Metallic taste, Nausea/vomiting, Neutropenia, Nightmares, Peripheral neuropathy, Pruritis, Psychosis, Rash, Skin rashes, Stevens-johnsons syndrome, Stomatitis, Taste disturbances, Thrombocytopenia, Thrombophlebitis, Torsades de pointes, Toxic epidermal necrolysis, Urethral discomfort, Urticaria, Ventricular arrhythmias, Ventricular tachycardia, Weakness