Hi & Welcome.
I can understand your concern.
Yes, Tazzle can be taken for ED while suffering from
diabetes.
The usual dose is 10 mg once daily to be taken on an empty stomach at least 30 minutes before sexual activity, up to 20 mg/dose. Do not take more than once per day.
Generally it is well tolerated however it can cause headache, nasal stuffiness, fall in BP,
flushing, palpitations, increased heart beats,
stomach upset, & visual disturbances on prolonged use.
Besides taking the medication you must avoid taking alcohol or smoking,
anxiety and stress. Do regular exercise. Careful blood sugar control can prevent nerve and blood vessel damage that can lead to
erectile dysfunction.
Hope this answers your query.
Take care.