Does using Minoxidil cause hair loss and regain at regular intervals?

Minoxidil is not an absolute cure for hair loss and it does not work exactly as planned.  What you may be noticing are the side effects as well as your natural hair loss progression.

Different formulations of minoxidil may have variable concentrations of the active drug especially if manufactured in countries with poor regulatory standards.If you are concerned about your hair loss and want to be sure that you at getting good quality 5% minoxidil then you should consider investing in Regaine/Rogaine.Having said that, minoxidil doesn't work for everyone and even if it has worked for a while it's beneficial effects might not be long lasting.If you are worried about on-going hair loss you might want to consider taking Propecia

Minoxidil, when first started, may produce a temporary hair loss picture for 2-3 months. Then any hair loss you experienced will reverse. If you continue the minoxidil and see hair loss, tiy cab (1) stop the drug and see what happens, (2) think that the cause of your hair loss nay be genetic acceleration of the hair loss.  See a good doctor and have the doctor examine yuu to determine what it the cause of your hair loss