Although serious side effects related to the use of oral minoxidil are rare, some individuals may prefer to avoid daily medication due to personal constraints or concerns about potential side effects, such as increased body hair growth or lower limb edema. Additionally, oral minoxidil may be contraindicated in patients with cardiac conditions due to its vasodilatory effects, which can lead to cardiovascular complications (e.g., tachyarrhythmias and others). It is always essential to consult a healthcare professional to evaluate the risks and determine the safest and most effective option.¹
On the other hand, minoxidil injections avoid these side effects by delivering the medication directly to the hair follicles, minimizing systemic exposure. This method is particularly beneficial for patients who are sensitive to or concerned about the side effects of oral minoxidil.
¹Reference:Medscape.