Ya you can take it but if possible plz avoid self medication. And for your full treatment i need more info about you and your problem. Only study is forgotten but not happened with other things like song/ story/ movie than its not a memory problem it's only due to exam stress and fear.
Next Steps
contact me personally on private chat window
Health Tips
focus only on your exam
take proper sleep and try meditation and yoga for at least 15-30 min at morning
be confident
keep your mind calm