HC Deb 13 December 1983 vol 50 c435W
Mr. Ashley

asked the Secretary of State for Social Services how many yellow warning notices have been issued by the Committee on Safety of Medicines since 1964; and if he will list the drugs for which they were issued, indicating how many of them had product licences of right.

Mr. Kenneth Clarke

The Committee on Safety of Medicines has issued 18 adverse reaction leaflets —yellow warning notices—to doctors since 1964. These related to: monoamine oxidase inhibitors, phenylbutazone, oxyphenbutazone, nifenazone, indomethacin, mefenamic acid, chloramphenicol, aerosols in asthma, psychotropic drugs, sequential oral contraceptives, oral contraceptives containing oestrogens, erythromycin estolate, practolol, prazosin, hormonal pregnancy tests, neomycin, perhexiline maleate, antibiotics, clofibrate.

The number of products which would have been affected by these leaflets and the kind of product licence applying to each is not readily available.

Those leaflets are, of course, only one of the methods that are employed by the Committee on Safety of Medicines to warn doctors of hazards.