ya the alpha alpha tonic can be given to 14month olds.
coming to restlessness during nights, it can be very much due to intestinal worms. these worms itch more when children sleep, resulting into restlessness, waking up, crying. as it is, u should deworm yr child every month, with homeopathy.
another possible reasons of restlessness could be gas/ uncomfortable night dress, mites in pillows (resulting into headaches, sneezing, coughing etc)/ uncomfortable temperature of the room(we mothers tend to put lots of clothes to avoid cold while sleeping, while some children can sleep better only when its slightly cool), /style of sleeping, (some children like to snuggle, while some prefer lots of space around) /some emotional stress(weaning in process, separation anxiety, stranger anxiety etc)/ body pain/ stuffy nose
so try and change the present things and her sleep may get better..my son had similar problem when he was 1 year old. we took him to a homeo doc on recommendation of a good allopath. the homeo doc gave 10-12 medicines at the same time saying' homeo ma, no problem in giving many'. she didnt tell us names of the medicines either. my son started sleeping very well at nights. soon we found out that she had given sedatives. we have had similar experiences with 3 different homeo docs here. so now we are very wary of going to new one..
i started 'goodnight routine' with my son, that helped a lot.. l gave him 1 hour to unwind before actually putting him to sleep. that unwinding would include putting back toys, saying good night to everyone, telling all toys that we would play again the next day(believe me, this reassures children a lot), a quick bath, lavender-oil massage(lavender oil is very good for relaxing a child), drinking milk, reading story together, singing lullaby while rocking him on my lap. he would doze off to sleep..and thankfully, now he doesnt have sleep problems per se. he wakes up only when he is not well.
dont worry, she will be fine..(pssst..catch up on yr sleep when yr daughter sleeps during the daytime)