You need the Secret Potion, and you can get it at the Cianawood Pharmacy.
A reciept when you need medicine.
After returning to the sick Pokemon in the light tower (bring your medicine from Cianwood with you).
they use medicine because people in this world get sick a lot and they need to get better so they use it
if you are meaning the medicine for ampharos the sick Pokemon from the lighthouse then it is at cianwood city... there is a place where you can get special medicine for ampharos (the sick lighthouse Pokemon) then take it back to the female (which is the gym leader for olivine.) that is looking after him. then she goes off and you can go battle her in her gym in olivne..! I hope I've helped ~Amelia age 6~
to get the secret potion(medicine)you need to go to cianwood
They usually need a doctor to help them because they can't help them self or they just drink medicine,which will get them more sick.
You need to link with a friend
You must give the Secret Medicine, which can be obtained at Cianwood City.
No, you can't buy medicine, but if your Moshi Monster is sick you need to play with it and feed it so that it will become happy and healthy.
You just have to climb the light house, talk to her then go to the pharmacy in cianwood and he will give you the secretpotion.
If you are sick, medicine is of benefit (assuming you can get it). If anyone you know is sick, medicine is of benefit (assuming they can get it). Medicine is of little help to dead people:- so for them it is indifferent. There are no circumstances under which medicine is noxious.
Hamsters will need to be taken to a vet, and he or she will give you a prescription if needed or, they will tell you what will need to happen for your hamster to live a happy life.