These medicines are both sedating and can cause similar side ... Signs of low blood pressure (hypotension) include dizziness, blurry vision, and fatigue. What should not mix with Benadryl?

The Food and Drug Administration (FDA) has not approved Benadryl, which contains the ... they may be more likely to experience severe side effects.

To treat dog allergies, travel jitters, dry mouth, high blood pressure ... but they also carry a high risk of side effects and allergic reactions. Diphenhydramine is a first-generation ...