Yes you can, as long as it is for your own account and the quantities imported do not exceed what is allowed as personal treatment for one month. Beyond the quantities required for your personal monthly treatment, this is forbidden. This is a contravention punishable by a fine.
That said, importing medicines remains risky: the name of the drug abroad is not necessarily the same as in Switzerland, and the same applies to its composition. A drug component may be legal in neighboring Europe, but not necessarily in Switzerland. For example, an active ingredient in a drug ordered abroad may be listed as a narcotic in Switzerland. In this case, importing the drug will be punishable by a fine if it is ordered for personal consumption. This importation will also be punishable by a fine or deprivation of liberty if it is carried out for a third party.
In addition, it’s important to watch out for the large number of counterfeit drugs sold on the Internet, whose real ingredients are not known, and which could endanger the health of consumers,
Last but not least, you will of course have to comply with tax and customs regulations relating to import taxes, the violation of which is also punishable by criminal penalties.
