In the long term clinical study, the percentage of patients who experienced adverse reactions decreased with increasing length of exposure.
Tabulated list of adverse reactions: The table as follows lists the adverse reactions observed in placebo-controlled clinical trials according to the MedDRA frequency convention: very common (≥ 1/10), common (≥ 1/100 to < 1/10), uncommon (≥ 1/1,000 to < 1/100), rare (≥ 1/10,000 to < 1/1,000), very rare (< 1/10,000) and not known (cannot be estimated from available data). Within each frequency grouping, adverse reactions are presented in order of decreasing seriousness. (See table.)

Description of selected adverse reactions observed with other PDE5 inhibitors: Non-arteritic anterior ischaemic optic neuropathy (NAION) and sudden loss of hearing have been reported ina small number of post-marketing and clinical trial cases with other PDE5 inhibitors. No cases were reported during clinical trials of avanafil (see Precautions).
Priapism has been reported in a small number of post-marketing and clinical trial cases with other PDE5 inhibitors. No cases were reported during clinical trials of avanafil.
Haematuria, haematospermia and penile haemorrhage has been reported in a small number of post-marketing and clinical trial cases with other PDE5 inhibitors.
Hypotension has been reported post-marketing with other PDE5 inhibitors, and dizziness, a symptom commonly caused by lowered blood pressure, has been reported in clinical trials with avanafil (see Interactions).
Reporting of suspected adverse reactions: Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the national reporting system.
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