What are the effects and precautions of Rukang Pill?

The medicine is a kind of Chinese patent medicine, the main ingredients are selfheal, asparagus root, myrrh, fritillaria thunbergii, chicken's gizzard-membrane, salvia miltiorrhiza, zedoary, atractylodes rhizome, seaweed, oyster, astragalus root and so on. When using, pay attention to pregnant women with caution. For patients with drug allergy, it should also be prohibited to use. When the drug's properties change, the patient cannot use it.