Citron for Anorexia

The gargles of milk, sugarcane juice, jaggery water, sugar, honey, and wine prepared from sugarcane, grape wine, kokam (Garcinia cambogia) and citron fruit are beneficial in curing dryness of the palate.

— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 22: Thirst Disorders Treatment (Trishna Chikitsa / तृष्णाचिकित्सा)

When external application of paste prepared from pomegranate, wood apple, lodhra (Symplocos racemosa), white yam and citron or of whitish emblica myrobalans mixed with ghee and sour wheat porridge is done over head area it proves useful.

— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 22: Thirst Disorders Treatment (Trishna Chikitsa / तृष्णाचिकित्सा)

The juice of Bijapura (citron — Citrus medica) mixed with honey and Ardraka (ginger) alleviates pain in the flanks, heart region, and bladder, as well as severe abdominal Vata (flatulence).

— Sharangadhara Samhita, Madhyama Khanda, Chapter 1: Svarasadikalpana (Svarasa, Kalka, Kvatha, etc.)

The tender leaves of Bijapura (citron — Citrus medica), Amra (mango — Mangifera indica), and Jambu (Syzygium cumini), along with their respective barks, should each be taken separately [for Putapaka preparation].

— Sharangadhara Samhita, Madhyama Khanda, Chapter 1: Svarasadikalpana (Svarasa, Kalka, Kvatha, etc.)

The powder should be further processed (Bhavana) with the juices of Ardraka (fresh ginger) and Bijapura (citron — Citrus medica).

— Sharangadhara Samhita, Madhyama Khanda, Chapter 3: Churnakalpana (Powder Preparations)

— Bijapura (citron) juice should be used to form pills with these.

— Sharangadhara Samhita, Madhyama Khanda, Chapter 4: Gutikakalpana (Tablet/Pill Preparations)

The stamens of Matulunga (citron, Citrus medica) combined with Saindhava (rock salt) and Ushana (black pepper, Piper nigrum), used as Kavala, destroy oral sluggishness (Jadya) and loss of taste (Aruchi) caused by Kapha and Vata.

— Sharangadhara Samhita, Uttara Khanda, Chapter 10: Gandusha-Kavala Pratisarana Vidhi (Gargling, Oil Pulling and Oral Paste Application)

Also saindhava (rock salt), devadaru (cedar), shunthi (dry ginger), and matulunga (citron) juice with ghee.

— Sushruta Samhita, Uttara Tantra, Chapter 9: Vatabhishyanda Pratishedha Adhyaya (Chapter on Treatment of Vata-type Conjunctivitis)

Mahaushada (ginger), pippali (long pepper), musta (nut grass), saindhava (rock salt), and white maricha (pepper) — ground with matulunga (citron) juice — this eye anjana quickly destroys pishtaka (paste-like eye lesion).

— Sushruta Samhita, Uttara Tantra, Chapter 11: Kaphabhishyanda Pratishedha Adhyaya (Chapter on Treatment of Kapha-type Conjunctivitis)

River-born substance, agra, white pepper, and Nepali-origin herb in equal proportions, with matulunga (citron) juice — this formulation destroys itching with a single application of anjana.

— Sushruta Samhita, Uttara Tantra, Chapter 11: Kaphabhishyanda Pratishedha Adhyaya (Chapter on Treatment of Kapha-type Conjunctivitis)

With sugar, madhuka (licorice), katphala, whey, honey, sour substances, and saindhava — also with bijapura (citron), kola (jujube) acid, and pomegranate acid, in proper proportion.

— Sushruta Samhita, Uttara Tantra, Chapter 12: Raktabhishyanda Pratishedha Adhyaya (Chapter on Treatment of Blood-type Conjunctivitis)

With matulunga (citron) juice, this poultice serves the same purpose;

— Sushruta Samhita, Uttara Tantra, Chapter 17: Drishtigata Roga Pratishedha Adhyaya (Chapter on Treatment of Diseases of Vision / Drishti Roga)