Common side effects of Spedra include: Back pain, dizziness, indigestion, flushing, headache, migraine, muscle pain, nasal congestion, nausea, visual disturbances, vomiting.

Uncommon side effects include: drowsiness, nose bleeds, high blood pressure, low blood pressure, painful red eyes, heart palpitations, fast heart rate.

Other side effects exist, you should always inform your doctor if you experience any side effects. If you experience allergy symptoms i.e. rash, shortness of breath, you should seek emergency medical attention. Always read the patient information leaflet that comes with your medication.

Sources

References

Further reading on this topic from official health guidance and published research.

  1. Spedra 100 mg tablets — Summary of Product Characteristics

    electronic medicines compendium (emc) · HTML · UK regulated product information · Last updated on emc 14 October 2024 · Link destination checked 13 November 2026

  2. Erectile dysfunction (impotence)

    NHS · HTML · official patient guidance · Link destination checked 13 November 2026

Reference links open the cited source pages. If you spot something out of date, tell our content team.

Who wrote this

Written and reviewed by our team

Authored by

Ian Coakley, Content Writer

Content Writer

Ian is Simple Online Pharmacy’s Content Writer; he joined the team in 2021. He has had a varied career path, starting as a science communicator and freelance editor and writer. While Ian has been published in some independent outfits, Simple Online Pharmacy marks his first foray into writing for a corporate entity.

Read Ian’s profile

Medically reviewed by

Karim Nassar, Co-Founder, Pharmacist & Author

Karim Nassar

Co-Founder, Pharmacist & Author

GPhC 2064752 · verify

Karim is a registered pharmacist with the General Pharmaceutical Council (GPhC) and was a founding member of Simple Online Healthcare in 2015. With a Master of Pharmacy degree from Strathclyde University, Karim brings a strong foundation in pharmaceutical care and a passion for leveraging digital solutions to improve patient access to healthcare.

Read Karim’s profile

Published

Last medically reviewed

Sources cited

See 2 references

Keep reading

More Erectile dysfunction advice

View all Erectile dysfunction advice