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.
It contains the cough suppressant Dextromethorphan. Robitussin Dry Cough Forte provides long lasting relief for up to 8 hours from dry, irritating and hacking coughs. This proven cough suppressant relieves coughs due to minor throat and bronchial irritation as may occur with a cold. 1  Only available in pharmacies. 2  Available in 100mL & 200mL.