He is just below the Pokemon Center in a house that has a sign next to it labeled 'pharmacy'. Go in and talk to the guy.
go 2 cianwood city's pharmacy.the man at the counter will give u a secretpotion after u have seen amphy(the sick ampharos in the lighthouse)
You need the SecretPotion, which you get from the pharmacy in Cianwood City. You have to talk to Jasmine in the Lighthouse first before you get the SecretPotion.
you need to go to cianwood city's pharmacy shop talk to the guy and he will give u the secretpotion
You get it at the Cianwood City Pharmacy. It is used to Cure The Lighthouse Pokemon Ampharos. This answer is right-on. the pharmacy in Cianwood City in the Johto Region, and it is used to cure the ailling lighthouse Pokemon ampharos.
The serum you are talking about is actually called a secretpotion. You have to go to Cianwood City's pharmacy. Once you talk to the clerk, he'll give you the secretpotion to give to the Ampharos in the lighthouse.
you have to go to cianwood city and go to the top of the lighthouse and find jasmine she will give you the secretpotion.
you are going to need the HM surf, and then surf to cianwood city. there will be a pharmacy that gives you the secretpotion for free, but i recommend beating the cianwood city gym leader before heading back to olivine city.
You can only get the SecretPotion after you have talked to Jasmine in the Olivine Lighthouse. Then she will ask you to get Ampharos some Medicine. You go to Cianwood City and talk to the guy at the Pharmacy and he will give you SecretPotion for Ampharos.
Go to Cianwood City, southwest of Olivine City. Go to the pharmacy there, and you'll get a free SecretPotion. Also, challenge the Gym while you're there. Go back to the Ampharos and the SecretPotion will cure it.
u go to the pharmacy and talk to the guy da
you have to surf to Cianwood city and go to the pharmacy right beside the Pokemon center. Then beat the Gym to get HM02 - Fly
In Pokémon SoulSilver, you get the Mineral Badge from beating Jasmine the Olivine City Gym Leader however in order for her to return to her Gym, you have to go to her in the Lighthouse and walk up the stairs to her. She'll tell you the Lighthouse's Ampharos is sick and that there's medicine in Cianwood City that will cure it so you have to head to Cianwood City in order to retrieve the SecretPotion from the Pharmacy there and then you can give the SecretPotion to Jasmine.