Which of the following drugs is an H2 receptor antagonist?

Explanation:
Levodopa crosses the blood-brain barrier and is converted into dopamine, which helps in Parkinson’s disease.

Explanation:
Phase III trials confirm the drug's effectiveness in large populations before approval.

Explanation:
The normal pH of blood is maintained within 7.35-7.45 for homeostasis.

Explanation:
Schedule X drugs require special prescription and strict regulations due to addiction potential.

Explanation:
Sustained-release tablets release drugs gradually over time, improving compliance.

Explanation:
Bile salts help emulsify fats, making them easier to digest by lipase.

Explanation:
Ginseng roots is used as an aphrodisiac, stimulant, type II diabetes and cure for erectile dysfunction in man. Ginseng contains a series of tetracyclic triterpenoid saponins (ginsenosides) as active ingredients. It is considered a tonic or adaptogenic that enhances physical performance (including sexual), promotes vitality and increases resistance to stress and ageing.

Explanation:
In Hindi language 'indian squill' is known as 'jungali pyaz'

Explanation:
The nutmeg tree is species of the genus Myristica and family myristicaceae.

Explanation:
Pimpinella anisum, also called aniseed is a flowering plant in the family Apiaceae.

Explanation:
The essential oil in fennel is constituted mainly anethole (80%) and about fenchone ( 7.5% ).

Explanation:
Mother cloves (anthophyllie) are the ripe fruits of cloves that are ovoid, brown berries, unicellular, and one-seeded.