Answer
Yes. Blood-vessel constriction can raise blood pressure, which can be therapeutic during anaesthetic hypotension but harmful in susceptible people.
Sources for this answer
- Flamingo Max Strength Congestion Relief 12.2 mg capsules, hard — Current selected SmPCemc · Summary of Product Characteristics
- Phenylephrine 0.1 mg/ml, solution for injection — Current selected SmPCemc · Summary of Product Characteristics