Oral minoxidil helps some forms of hair loss and does very little for other forms. So, first and foremost you are going to want to figure out which form you have. If androgenetic alopecia is the form, the dose to use will depend on whether the person is male or female and what other medical issues might be present. Certainly this drug is not suitable for everyone and given that it’s not FDA approved it requires proper review with a doctor. the drug helps some patients with androgenetic alopecia but does not help all patients. For women, the dose is 0.25 to 1.25 mg (and sometimes up to 2.5 mg) and for males, it’s 1.25 mg to 5 mg. Side effects include racing heart, dizziness, swollen feet, fluid retention in the body, pericardial effusions, excessive hair growth. Fortunately these do not occur in most but certainly do occur. The drug is used lifelong and must never be used in pregnancy or breastfeeding. All in all, oral minoxidil is an option for some types of hair loss. It’s a good option for some patients and a very bad idea for others. be sure to review all your details with an expert.