How soon hair loss from taking asacol (mesalamine)?

Hair Loss/Asacol. Hair loss or thining of hair is a rare side effect of asacol (mesalamine), (mesalamine) it does not happen very frequently.Hair loss is quite common even without taking asacol (mesalamine).How soon it takes place has varied from all the reported cases.But it can happen few weeks after taking asacol (mesalamine), (mesalamine) it actually starts with hair thining and can continue only way to know if it is due to Asacol (mesalamine) is, if you stop the med and hair los stops.