OS X Yosemite and Later. 1  Click the Options button associated with the Keychain service item. 2  Use the Verification number field to change âthe security phone number. Remember the phone number must be associated with a phone that is SMS enabled.â Click the OK button.
Guaifenesin is the active ingredient in many cough medicines, such as Robitussin. It is safe to use in pregnancy. If a pregnant woman has a severe cough that doesn't respond to guaifenesin, her doctor can prescribe codeine and other narcotics.uaifenesin is the active ingredient in many cough medicines, such as Robitussin. It is safe to use in pregnancy. If a pregnant woman has a severe cough that doesn't respond to guaifenesin, her doctor can prescribe codeine and other narcotics.
Often times the term âexpectorantâ is incorrectly used with any cough medicine. To get the benefits of an expectorant your product must have and expectorant ingredient in it. Mucinex, a popular over the counter, sinus, cough, cold, mucus relief product contains Guaifenesin but does not contain Ephedrine HCL.ften times the term âexpectorantâ is incorrectly used with any cough medicine. To get the benefits of an expectorant your product must have and expectorant ingredient in it. Mucinex, a popular over the counter, sinus, cough, cold, mucus relief product contains Guaifenesin but does not contain Ephedrine HCL.