Dr. Reckeweg R15 (Vita-C15) (250ml)R15 F (Vita C Forte) Nervous exhaustion, nervous headache, insomnia, general neurasthenia, stimulative of endogenous resistance, overexertion, depressions, inability to concentrate, lack of energy, impotency, spring fatigue, convalescence. General physical invigoration. The feeling of exhaustion subsides and there is a return of the energy to work. Action of composition used in R15 (vita C forte) Acid phos : Physical and mental weakness, weakness of