What cold medicines can my father on blood pressure medicines with glaucoma take?

OTC: Most over the counter (otc) cold remedies are ok - just beware of those containing pseudo Ephedrine (ephedrine sulfate) as this may increase BP and also potentially the pressure in the narrow angle glaucoma -- some rare allergy to the most common antihistamine (diphenhyramine or benadryl) occurs that may cause increase pulse and blood pressure.

Avoid if narrow angl: Only a narrow occludable angle without a patent laser iridotomy is at risk for pupillary block angle closure induced by otc cold meds. A narrow angle needs to be found preventatively on gonioscopy exam in the office.