You should not use  minoxidil if you have pheochromocytoma (adrenal gland tumor).
Minoxidil is usually given together with two other medicines to help prevent serious side effects. Use all medications as directed by your doctor.
Call your doctor at once if you have new or worsening chest pain, shortness of breath (even while lying down), pain when you breathe, or fast heartbeats.
Before taking this medicine
You should not use minoxidil if you are allergic to it, or if you have:
pheochromocytoma (tumor of the adrenal gland).
To make sure minoxidil is safe for you, tell your doctor if you have:
congestive heart failure;
angina (chest pain), or if you have recently had a heart attack;
kidney disease (or if you are on dialysis);
asthma;
migraine headaches; or
epilepsy or other seizure disorder.
It is not known whether this medicine will harm an unborn baby. However, a newborn baby could have excessive hair growth if the mother has taken minoxidil during pregnancy. Tell your doctor if you are pregnant or plan to become pregnant.
Minoxidil can pass into breast milk and may harm a nursing baby. You should not breast-feed while using this medicine.
Do not give this medicine to a child without medical advice.
