 [ Symptoms ] can botox cause a tia i have had two episodes of tia and each time i would had botox injections i also have two brain aneurysms the only other factor i have for tia i would high chlorestorol and it is under control with meds these episodes were three years apart [ Disease ] it is highly unlikely that botulinum toxin botox is one common brand could cause a transient ischemic attack tia you do not say why you had injections of botulinum toxin while people associate botox with cosmetic treatments in truth there are many therapeutic uses for the medication but it is likely the tias were coincidental to your botulinum toxin injections tias occur when blood flow to an area of the brain is temporarily blocked usually by a blood clot in one of the arteries of the brain botulinum toxin is a muscle relaxant drug it is not injected into the blood stream and has no relationship to clot formation botulinum toxin is injected into muscles for various reasons    to smooth wrinkles around the eyes cosmetic or to help reduce spasms of the pectoral muscle in breast reconstruction after mastectomy therapeutic to name just two examples if you have any concerns about whether or not botulinum toxin could have been involved in your tia you should talk to the healthcare provider who performed the botox injections wishing you well