Does tadalafil cause blindness or hearing loss?

Stop using tadalafil and call your doctor at once if you have:

a light-headed feeling, like you might pass out;

an erection is painful or lasts longer than 4 hours (prolonged erection can damage the penis);

vision changes or sudden vision loss;

ringing in your ears or sudden hearing loss; or

heart attack symptoms - chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating.

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