Before you begin taking a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should take this medication.
Drowsiness/reduced alertness: Minoxidil may affect the mental or physical abilities needed to drive or operate machinery. Avoid driving, operating machinery, or performing other hazardous tasks until you have determined how this medication affects you.
Heart disease: People with certain types of heart disease may be at an increased risk of adverse reactions to minoxidil. If you have a history of heart attack or stroke, heart disease, blood vessel disease, or angina (chest pain), discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.
Kidney function: If you have kidney disease or reduced kidney function, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.
Weight: Minoxidil can cause fluid to build up in the body, possibly leading to congestive heart disease. This can be controlled with diuretic medication (water pills) if necessary. Weigh yourself every day while taking minoxidil. If your weight increases by 2 kg (1 kg for children), call your doctor right away. Contact your doctor as soon as possible if you experience swollen feet, ankles, or wrists, or difficulty breathing.
Pregnancy: This medication should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking this medication, contact your doctor immediately.
Breast-feeding: This medication passes into breast milk. If you are a breast-feeding mother and are taking minoxidil, it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.