Antihistamines are sometimes combined with caffeine to counteract the drowsiness that those drugs cause.
They can cause you to be inattentive and drowsy.
Drowsinnes
Yes. Antihistamines can cause a negative result
Lactulose cannot, by itself, cause bleeding.
Yes it can cause bleeding
I wanna knw wat is the cause of bleeding noise
Promethazine (Phenagren) can cause a false negative.
Histamines cause many of the standard allergic responses: itching, sneezing, runny nose, etc. Antihistamines block histamines from binding on their receptors in the body.
a machete
no
Various things can happen to cause bleeding outside of the menstrual cycle. For example, it is possible for sex to cause bleeding.