Roderick H. Tarrer Jr., 68, a retired pharmacist who owned and operated several ethical pharmacies in Washington, died Jan. 1 at the Veterans Administration Hospital after a heart attack. He lived in Washington.

Mr. Tarrer, who was born in Huntington, W.Va., served in the Marine Corps in the Pacific during World War II. He graduated from the Howard University school of pharmacy in 1952.

From 1953 until 1974, Mr. Tarrer and a partner owned and operated several ethical pharmacies here, including The Prescription Shop, the University Pharmacy and the Standard Pharmacy. He retired in 1974.

Mr. Tarrer was a former member of the D.C. Board of Pharmacy, the D.C. Pharmaceutical Association, the Washington Pharmaceutical Association, the American Pharmaceutical Association and the National Pharmaceutical Association. He was named pharmacist of the year in 1968 by the D.C. Pharmaceutical Association.

Mr. Tarrer also was a member of the Disabled American Veterans, the Pigskin Club and the Bachelor Benedict social club.

His marriage to Mildred Hoard ended in divorce.

Survivors include his wife, Hortense, of Washington; three children by his first marriage, Roderick T., of Fair Oaks, Calif., Thomas J., of Bakersfield, Calif., and Louise Tarrer Neal of Cleveland; a daughter by his second marriage, Rise Z. Tarrer, and a stepdaughter, Joan Downing, both of Washington; a stepson, Sherman L. Ragland of Columbia; three sisters, Aneda France of Washington, Lorena Griffin of Chicago, and Helen Martin of St. Thomas, Virgin Islands; a brother, Johnnie B. Tarrer of Wichita, Kan., and 13 grandchildren.