Minoxidil has been known to cause stress and anxiety which can in turn disturb sleep. Try stopping for a week and reassess

Hello..... Burning, stinging, or redness at the application site may occur.ypu must stop medicine if you are having warning symtom like body hair, dizziness, fast/irregular heartbeat, fainting, chest pain, swelling of hands/feet, unusual weight gain, tiredness, difficulty breathing especially when lying down.. But it doesn't cause insomnia.