Ultra Q 300 Capsule is used to treat various medical conditions, including Ubidecarenone deficiency, Male Infertility-iOAT (idiopathic oligoasthenoteratozoospermia), Female infertility, supplements in Migraine, Ageing, Fibromyalgia & Diabetes. Male infertility-iOAT is defined as an unexplained decrease in the semen parameters of a male.