def prescriptions():
st.header('PRESCRIPTIONS')
option_list = ['', 'Add prescription', 'Update prescription', 'Delete prescription', 'Show prescriptions of a particular patient']
option = st.sidebar.selectbox('Select function', option_list)
m = Prescription()
if (option == option_list[1] or option == option_list[2] or option == option_list[3]) and verify_dr_mls_access_code():
if option == option_list[1]:
st.subheader('ADD PRESCRIPTION')
m.add_prescription()
elif option == option_list[2]:
st.subheader('UPDATE PRESCRIPTION')
m.update_prescription()
elif option == option_list[3]:
st.subheader('DELETE PRESCRIPTION')
m.delete_prescription()
elif option == option_list[4]:
st.subheader('PRESCRIPTIONS OF A PARTICULAR PATIENT')
m.prescriptions_by_patient()
