If you are:
Possibly Safe: INSUFFICIENT HUMAN DATA; NO EVIDENCE OF FETAL HARM IN ANIMAL STUDIES AT 68X MRHD
Precaution: INSUFFICIENT DATA AVAILABLE
An adult over 60:
management or monitoring precaution: Hepatic-Consider dose reduction with hepatic impairment. Renal-Consider dose reduction with severe renal impairment.
Giving sildenafil tablet to a child under 12:
Severe Precaution: Not recommended for chronic treatment. Limited safety data on dose/duration. Increased mortality observed with high dose treatment of PAH and longer duration of therapy.