"i took this medication when i was 16 for acne. i was getting headaches that the dermatologist said couldn&#039;t possibly be from the minocycline. i woke up after being on it for 6 weeks with double vision. i had pseudotumour cerebri (intercracial hypertension). i have suffered with recurrent headaches ever since. i am now 43. last year i was diagnosed with a chiari malformation last year that was caused by pseudotumour cerebri. i also have syringomyelia that was caused by the chiari malformation. this is a very dangerous medication. i will eventually be in a wheelchair and will not be able to care for myself because i took minocycline at age 16."