Depresses heart, respiration and blood pressure, lowers temperature. Cyanosis and collapse. Increased susceptibility to cold. Destroys red blood corpuscles; pallor.

Enlarged sensation. Fainting. Moral depravity.

Pallor of optic discs, contracted visual field and shrinking retinal vessel; mydriasis.

Weak, irregular, with blue mucous membranes, albuminuria, edema of feet and ankles.

Compare: Antipyrin.

Used as a sedative and antipyretic for various forms of headache and neuralgia in doses of one to three grains. For the homeopathic indications use the third potency.

Reference: “Pocket Manual of Homeopathic Materia Medica & Repertory” by William Boericke
(Acetanilid (formed from aniline). CH3 CO NH C6 H5. Exalgine is a derivative from this, Methylacetanilid, and has almost identical action. Solution and trituration.)

Clinical.─Asthma. Cyanosis. Fainting. Head, enlarged sensation. Palpitation. Thrombosis.

Characteristics.─Given as remedies for migraine and in order to reduce fever, Antifeb. and Exalg. have produced symptoms of collapse and cyanosis, in some instances fatal, with great rapidity. One patient experienced from Exalgine a sensation that his head was so large that it seemed to occupy the whole room. Respiration was most difficult as in a bad attack of asthma, he seized and clenched the hands of those around him. He was not an asthmatic subject. He felt as if the diaphragm had ceased working and he must go on breathing on his own account at any cost. Several cases of thrombosis of the lower extremities from heart weakness have followed its use.

Relations.─Compare: Antipyr., Anilinum, Glon., &c.

Reference: “A Dictionary Of Practical Materia Medica” By John Henry Clarke