Do not infer safety from the product category
A medicine intended for fish may contain ingredients that affect shrimp or other invertebrates. Brand names and formulations can change, so check the current package rather than relying on an old forum post.
Remove or isolate affected fish for treatment when appropriate, but do not move shrimp into an uncycled container without planning safe filtration.
Treat a confirmed problem
Identify the symptom pattern and water conditions before choosing a medication. Many apparent disease signs can also result from water-quality or acclimation stress.
Follow the label exactly and avoid mixing treatments. When shrimp safety is uncertain, ask the manufacturer or an aquatic veterinarian before exposing the colony.
For your own tank
Separate fish treatment from shrimp care whenever the situation allows and the alternative tank is safe. Check the current label because ingredients can change. An aquatic veterinarian or product manufacturer is a better source than a copied dose from an unrelated species forum.
Use these as general hobby references. Test your aquarium and confirm product guidance before making changes.