Side Effects of Flushing Medications

While oral medications like beta-blockers and alpha-agonists can be very effective for controlling severe rosacea flushing, they can have side effects. It's important to weigh the benefits against the potential trade-offs.

Trade-offs for exercise, energy and mood

Because these medications lower blood pressure and/or heart rate, common side effects can include fatigue, dizziness, or light-headedness. Beta-blockers can sometimes blunt the heart rate response to exercise, making intense workouts feel more difficult. They can also occasionally cause mood changes or vivid dreams. Clonidine can also cause drowsiness and dry mouth, particularly when starting treatment.

Who should avoid which drugs?

These medications are not suitable for everyone. Beta-blockers should be used with caution or avoided in individuals with asthma, very low blood pressure (hypotension), or certain heart conditions. Treatment usually starts at a very low dose, which is then gradually increased.

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Dr. Magnus Lynch, Consultant Dermatologist

About Dr Magnus Lynch

I am a London-based Consultant Dermatologist and Dermatological Surgeon. I am highly experienced in skin cancer diagnosis, Mohs micrographic surgery, acne, rosacea, acne scarring and laser treatments. I studied at the Universities of Cambridge and Oxford, and completed my dermatology training and Mohs fellowship at the prestigious St John’s Institute of Dermatology. I graduated from medical school in 2003 and have worked exclusively in Dermatology since 2012.

I lead a research team at King’s College London investigating the molecular biology of skin cancer. In recent years I have been involved in Media Appearances, including the Channel 5 series 'Skin A&E', where I perform skin surgeries and treat various skin conditions. Filming for the next series has recently completed and the series will be released later in 2025.

My NHS practice is at Guy's Hospital. I consult with private patients at the London Bridge Hospital, OneWelbeck (near to Bond Street station) and on Harley Street. A new consultation is £250. Book A Consultation.

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